VIROLOGIC INC
REFERRAL TESTING AGREEMENT
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<DESCRIPTION>REFERRAL TESTING AGREEMENT
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 <P STYLE="margin-top:0px;margin-bottom:0px" ALIGN="right"><FONT FACE="Times New Roman" SIZE="2"><B>Exhibit 10.1 </B></FONT></P> <P STYLE="margin-top:0px;margin-bottom:0px"><FONT
SIZE="1">&nbsp;</FONT></P> <P STYLE="margin-top:0px;margin-bottom:0px"><FONT FACE="Times New Roman" SIZE="2">[*] = C<SMALL>ERTAIN</SMALL> <SMALL>CONFIDENTIAL</SMALL> <SMALL>INFORMATION</SMALL> <SMALL>CONTAINED</SMALL> <SMALL>IN</SMALL>
<SMALL>THIS</SMALL> <SMALL>DOCUMENT</SMALL>, <SMALL>MARKED</SMALL> <SMALL>BY</SMALL> <SMALL>BRACKETS</SMALL>, <SMALL>HAS</SMALL> <SMALL>BEEN</SMALL> <SMALL>OMITTED</SMALL> <SMALL>AND</SMALL> <SMALL>FILED</SMALL> <SMALL>SEPARATELY</SMALL>
<SMALL>WITH</SMALL> <SMALL>THE</SMALL> S<SMALL>ECURITIES</SMALL> <SMALL>AND</SMALL> E<SMALL>XCHANGE</SMALL> C<SMALL>OMMISSION</SMALL> <SMALL>PURSUANT</SMALL> <SMALL>TO</SMALL> R<SMALL>ULE</SMALL> 24<SMALL>B</SMALL>-2 <SMALL>OF</SMALL>
<SMALL>THE</SMALL> S<SMALL>ECURITIES</SMALL> E<SMALL>XCHANGE</SMALL> A<SMALL>CT</SMALL> <SMALL>OF</SMALL> 1934, <SMALL>AS</SMALL> <SMALL>AMENDED</SMALL>. </FONT></P> <P STYLE="margin-top:0px;margin-bottom:0px"><FONT SIZE="1">&nbsp;</FONT></P> <P
STYLE="margin-top:0px;margin-bottom:0px" ALIGN="center"><FONT FACE="Times New Roman" SIZE="2"><B>Referral Testing Agreement </B></FONT></P> <P STYLE="margin-top:0px;margin-bottom:0px" ALIGN="center"><FONT FACE="Times New Roman" SIZE="2"><B>Between
</B></FONT></P> <P STYLE="margin-top:0px;margin-bottom:0px" ALIGN="center"><FONT FACE="Times New Roman" SIZE="2"><B>Virologic, Inc. and </B></FONT></P> <P STYLE="margin-top:0px;margin-bottom:0px" ALIGN="center"><FONT FACE="Times New Roman"
SIZE="2"><B>Quest Diagnostics Incorporated </B></FONT></P> <P STYLE="margin-top:0px;margin-bottom:0px"><FONT SIZE="1">&nbsp;</FONT></P> <P STYLE="margin-top:0px;margin-bottom:0px"><FONT FACE="Times New Roman" SIZE="2"><B>THIS AGREEMENT</B> is
entered into effective as of April 1, 2004 (the &#147;Effective Date&#148;), between Virologic, Inc. (Virologic), with offices located at 345 Oyster Point Blvd., South San Francisco, CA 94080 (&#147;Contractor&#148;) and Quest Diagnostics
Incorporated, a Delaware corporation with offices located at 1 Malcolm Avenue, Teterboro, New Jersey 07608 (&#147;Quest Diagnostics&#148;). </FONT></P> <P STYLE="margin-top:0px;margin-bottom:0px"><FONT SIZE="1">&nbsp;</FONT></P> <P
STYLE="margin-top:0px;margin-bottom:0px"><FONT FACE="Times New Roman" SIZE="2">Quest Diagnostics is the owner and/or operator of certain clinical laboratories located in various states throughout the United States. </FONT></P> <P
STYLE="margin-top:0px;margin-bottom:0px"><FONT SIZE="1">&nbsp;</FONT></P> <P STYLE="margin-top:0px;margin-bottom:0px"><FONT FACE="Times New Roman" SIZE="2">Contractor operates a referral testing laboratory that is duly licensed to perform clinical
laboratory testing. </FONT></P> <P STYLE="margin-top:0px;margin-bottom:0px"><FONT SIZE="1">&nbsp;</FONT></P> <P STYLE="margin-top:0px;margin-bottom:0px"><FONT FACE="Times New Roman" SIZE="2">Quest Diagnostics wishes to engage Contractor as its
preferred provider for HIV phenotypic resistance testing to perform laboratory testing services upon the terms and conditions set forth in this Agreement and Contractor wishes to provide to Quest Diagnostics those services upon those terms and
conditions. </FONT></P> <P STYLE="margin-top:0px;margin-bottom:0px"><FONT SIZE="1">&nbsp;</FONT></P> <P STYLE="margin-top:0px;margin-bottom:0px"><FONT FACE="Times New Roman" SIZE="2">In consideration of the mutual covenants hereinafter set forth,
the parties, intending to be legally bound, agree as follows: </FONT></P> <P STYLE="margin-top:0px;margin-bottom:-6px"><FONT SIZE="1">&nbsp;</FONT></P>
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<TD WIDTH="4%" VALIGN="top" ALIGN="left"><FONT FACE="Times New Roman" SIZE="2"><B>1.</B></FONT></TD>
<TD ALIGN="left" VALIGN="top"><FONT FACE="Times New Roman" SIZE="2"><B><U>Term</U></B> </FONT></TD></TR></TABLE> <P STYLE="margin-top:0px;margin-bottom:-6px"><FONT SIZE="1">&nbsp;</FONT></P> <P
STYLE="margin-top:0px;margin-bottom:0px; margin-left:4%"><FONT FACE="Times New Roman" SIZE="2">The term of this Agreement shall commence on the Effective Date and shall continue for a period of (1)&nbsp;year, subject to the early termination
provisions of Section 13 of this Agreement and to the following renewal option: Quest Diagnostics shall have two one-year options to extend the Agreement on the condition that the annual minimum volume term of [*], as set forth on Exhibit A hereto,
is met in the preceding year of this Agreement and upon written notice thereof to Contractor. </FONT></P> <P STYLE="margin-top:0px;margin-bottom:0px"><FONT SIZE="1">&nbsp;</FONT></P>
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<TD WIDTH="4%" VALIGN="top" ALIGN="left"><FONT FACE="Times New Roman" SIZE="2"><B>2.</B></FONT></TD>
<TD ALIGN="left" VALIGN="top"><FONT FACE="Times New Roman" SIZE="2"><B><U>Services; Contractor Certification and Standard of Work</U></B> </FONT></TD></TR></TABLE> <P STYLE="margin-top:0px;margin-bottom:-6px"><FONT SIZE="1">&nbsp;</FONT></P>
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<TD WIDTH="8%"><FONT SIZE="1">&nbsp;</FONT></TD>
<TD WIDTH="5%" VALIGN="top" ALIGN="left"><FONT FACE="Times New Roman" SIZE="2">(a)</FONT></TD>
<TD ALIGN="left" VALIGN="top"><FONT FACE="Times New Roman" SIZE="2"><U>Services:</U> Upon the request of Quest Diagnostics, Contractor shall provide Quest Diagnostics with laboratory testing services. Contractor represents and warrants to Quest
Diagnostics that it will perform all testing services under this Agreement in a professional, accurate, and timely manner. </FONT></TD></TR></TABLE> <P STYLE="margin-top:0px;margin-bottom:-6px"><FONT SIZE="1">&nbsp;</FONT></P> <P
STYLE="margin-top:0px;margin-bottom:0px; margin-left:2%"><FONT FACE="Times New Roman" SIZE="2"><U>Turn Around Time/Non Reportable Rate</U>: Contractor shall use its best efforts to ensure that its turn around time for delivering laboratory test
results to Quest Diagnostics shall not exceed twenty-four (24) hours from the time of specimen receipt at Contractor&#146;s location to the time that a detailed lab report is received by the requesting lab site (unless a longer turn around time is
specified on Exhibit B with respect to particular tests, in which event Contractor shall use its best efforts to meet the turn around times set forth on Exhibit B for those tests). Contractor represents and warrants that it has not and will not
offer another distributor a shorter or enhanced Turn Around Time or otherwise differentiate to the disadvantage of Quest in sample Turn Around Time and will make best efforts to meet the Turn Around Time for Results set forth on Exhibit B. If there
is a delay in reported results or additional testing is required to confirm or clarify the result of a specific test, and cannot be performed within the applicable turn around time, Contractor shall notify the Quest Diagnostics&#146; laboratory that
referred the test to Contractor of the time when results will be available to Quest Diagnostics. Repeat testing, when necessary or requested, will be performed at no charge. Quest Diagnostics and Contractor will work together to reduce
non-reportable results through mutual efforts to educate physicians and phlebotomists on appropriate specimen collection and handling requirements as set forth on Exhibit D hereto. </FONT></P>

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<TD WIDTH="8%"><FONT SIZE="1">&nbsp;</FONT></TD>
<TD WIDTH="5%" VALIGN="top" ALIGN="left"><FONT FACE="Times New Roman" SIZE="2">(b)</FONT></TD>
<TD ALIGN="left" VALIGN="top"><FONT FACE="Times New Roman" SIZE="2"><U>Changes:</U> Contractor shall provide Quest Diagnostics with at least sixty (60) days&#146; prior written notice before making any change to test methods for tests performed
under this Agreement (except for changes necessitated by causes beyond the control of Contractor or for changes necessary to maintain or improve quality levels, which changes shall be communicated to the parties referenced below immediately upon
Contractor&#146;s knowledge of such changes). Contractor shall provide such notice to Quest Diagnostics via electronic mail with hard copy follow-up to the parties identified below or as directed by the applicable Quest Diagnostics&#146; Sourcing
Manager. <B>The requirement to provide such notice is a material term, any breach of which shall be deemed a material breach of this Agreement</B>. If it is Contractor&#146;s practice to perform data base changes/updates on a regular schedule, the
implementation timeline shall be communicated to Quest Diagnostics at least ninety (90) days in advance of implementation. </FONT></TD></TR></TABLE> <P STYLE="margin-top:0px;margin-bottom:-6px"><FONT SIZE="1">&nbsp;</FONT></P> <P
STYLE="margin-top:0px;margin-bottom:0px; margin-left:4%"><FONT FACE="Times New Roman" SIZE="2">Unless otherwise designated by Quest Diagnostics from time to time, parties to be notified under this Section 2(c) are as follows: </FONT></P> <P
STYLE="margin-top:0px;margin-bottom:-6px"><FONT SIZE="1">&nbsp;</FONT></P> <P STYLE="margin-top:0px;margin-bottom:0px; margin-left:8%; text-indent:4%"><FONT FACE="Times New Roman" SIZE="2">1. Database Management: </FONT></P> <P
STYLE="margin-top:0px;margin-bottom:-6px"><FONT SIZE="1">&nbsp;</FONT></P> <P STYLE="margin-top:0px;margin-bottom:0px; margin-left:13%; text-indent:4%"><FONT FACE="Times New Roman" SIZE="2">(a) Corporate - <U>DB.Requests@questdiagnostics.com</U>
</FONT></P> <P STYLE="margin-top:0px;margin-bottom:-6px"><FONT SIZE="1">&nbsp;</FONT></P> <P STYLE="margin-top:0px;margin-bottom:0px; margin-left:13%; text-indent:4%"><FONT FACE="Times New Roman" SIZE="2">(b) Nichols Institute/SJC:
<U>sjctsohd@questdiagnsotics.com</U>; and </FONT></P> <P STYLE="margin-top:0px;margin-bottom:-6px"><FONT SIZE="1">&nbsp;</FONT></P> <P STYLE="margin-top:0px;margin-bottom:0px; margin-left:13%; text-indent:4%"><FONT FACE="Times New Roman"
SIZE="2">(c) Nichols Institute/Chantilly:mary.a.goodspeed@questdiagnostics.com </FONT></P> <P STYLE="margin-top:0px;margin-bottom:-6px"><FONT SIZE="1">&nbsp;</FONT></P> <P
STYLE="margin-top:0px;margin-bottom:0px; margin-left:8%; text-indent:4%"><FONT FACE="Times New Roman" SIZE="2">2. Sourcing Manager &#150; tramposj@questdiagnostics.com </FONT></P> <P STYLE="margin-top:0px;margin-bottom:-6px"><FONT
SIZE="1">&nbsp;</FONT></P> <P STYLE="margin-top:0px;margin-bottom:0px; margin-left:8%; text-indent:4%"><FONT FACE="Times New Roman" SIZE="2">3. National Director of Test Referral Networking - humesm@questdiagnostics.com </FONT></P> <P
STYLE="margin-top:0px;margin-bottom:0px"><FONT SIZE="1">&nbsp;</FONT></P>
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<TD WIDTH="8%"><FONT SIZE="1">&nbsp;</FONT></TD>
<TD WIDTH="5%" VALIGN="top" ALIGN="left"><FONT FACE="Times New Roman" SIZE="2">(d)</FONT></TD>
<TD ALIGN="left" VALIGN="top"><FONT FACE="Times New Roman" SIZE="2"><U>Certifications:</U> All testing performed by Contractor shall be in accordance with applicable state and federal testing requirements for clinical reference laboratories.
Contractor shall maintain, and hereby certifies its and its employees are in possession of, all necessary licenses, permits, accreditation and certifications, including approvals for specialties or subspecialties (all such licenses, permits,
accreditation and certifications, including approvals for specialties or subspecialties being collectively referred to hereafter as &#147;Required Approvals&#148;) required under applicable law, rule or regulation for Contractor and its clinical
laboratories to perform the tests referred to Contractor by Quest Diagnostics, including, without limitation, Required Approvals under the Clinical Laboratory Improvement Amendments (&#147;CLIA&#148;) of 1988, and any applicable state laws and
regulations, including the States identified on Exhibit B. Contractor shall maintain all Required Approvals for the duration of the term of this Agreement and any renewals. Before commencing laboratory testing under this Agreement, and within thirty
(30) days after the renewal date for any Required Approval, Contractor shall provide to Quest Diagnostics at its address provided above, Attn: Virginia Sturmfels, Manager, Medical Compliance, or such other address that Quest Diagnostics may direct
in accordance with the notice requirements of Section 14(b) of this Agreement, copies of all Required Approvals or any renewals thereof, under CLIA, from the States identified on Exhibit C and from Contractor&#146;s applicable accreditation agency
or agencies. If for any reason Contractor loses or is denied any Required Approval to perform one or more tests pursuant to this Agreement, Contractor shall immediately notify Quest Diagnostics at the address provided above and Quest Diagnostics
shall discontinue referral of any such test or tests, in the state, or states, affected until such time as Contractor can demonstrate it has the Required Approval. Recurrent loss of Required Approvals shall constitute a breach of this Agreement
authorizing Quest Diagnostics to terminate the Agreement under Section 13. Contractor shall provide Quest Diagnostics at the address provided above with a copy of any new Required Approval that it obtains during the term of this Agreement and any
renewals within thirty (30) days of receipt thereof. </FONT></TD></TR></TABLE> <P STYLE="margin-top:0px;margin-bottom:-6px"><FONT SIZE="1">&nbsp;</FONT></P> <P STYLE="margin-top:0px;margin-bottom:0px; margin-left:8%"><FONT FACE="Times New Roman"
SIZE="2">(e) <U>Reports</U>: Contractor shall furnish utilization reports monthly to Quest Diagnostics&#146; Sourcing Manager and other personnel designated by it from time to time. At a minimum, Contractor shall include in each utilization report
test names, Contractor&#146;s test codes, and the volume and dollar amount of each test. </FONT></P> <P STYLE="margin-top:0px;margin-bottom:0px"><FONT SIZE="1">&nbsp;</FONT></P> <P STYLE="margin-top:0px;margin-bottom:0px"><FONT
FACE="Times New Roman" SIZE="2">[*] = C<SMALL>ERTAIN</SMALL> <SMALL>CONFIDENTIAL</SMALL> <SMALL>INFORMATION</SMALL> <SMALL>CONTAINED</SMALL> <SMALL>IN</SMALL> <SMALL>THIS</SMALL> <SMALL>DOCUMENT</SMALL>, <SMALL>MARKED</SMALL> <SMALL>BY</SMALL>
<SMALL>BRACKETS</SMALL>, <SMALL>HAS</SMALL> <SMALL>BEEN</SMALL> <SMALL>OMITTED</SMALL> <SMALL>AND</SMALL> <SMALL>FILED</SMALL> <SMALL>SEPARATELY</SMALL> <SMALL>WITH</SMALL> <SMALL>THE</SMALL> S<SMALL>ECURITIES</SMALL> <SMALL>AND</SMALL>
E<SMALL>XCHANGE</SMALL> C<SMALL>OMMISSION</SMALL> <SMALL>PURSUANT</SMALL> <SMALL>TO</SMALL> R<SMALL>ULE</SMALL> 24<SMALL>B</SMALL>-2 <SMALL>OF</SMALL> <SMALL>THE</SMALL> S<SMALL>ECURITIES</SMALL> E<SMALL>XCHANGE</SMALL> A<SMALL>CT</SMALL>
<SMALL>OF</SMALL> 1934, <SMALL>AS</SMALL> <SMALL>AMENDED</SMALL>. </FONT></P> <P STYLE="margin-top:0px;margin-bottom:0px"><FONT SIZE="1">&nbsp;</FONT></P>
 <P STYLE="margin-top:0px;margin-bottom:0px" ALIGN="center"><FONT FACE="Times New Roman" SIZE="2">2 </FONT></P>


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 <P STYLE="margin-top:0px;margin-bottom:0px; margin-left:8%"><FONT FACE="Times New Roman" SIZE="2">Utilization reports shall present this information separately for each Quest Diagnostics&#146; Business
Unit. This report shall be submitted by Contractor electronically to email addresses designated by Quest Diagnostics from time to time. </FONT></P> <P STYLE="margin-top:0px;margin-bottom:0px"><FONT SIZE="1">&nbsp;</FONT></P>
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<TD WIDTH="4%" VALIGN="top" ALIGN="left"><FONT FACE="Times New Roman" SIZE="2"><B>3.</B></FONT></TD>
<TD ALIGN="left" VALIGN="top"><FONT FACE="Times New Roman" SIZE="2"><B><U>Pricing</U></B> </FONT></TD></TR></TABLE> <P STYLE="margin-top:0px;margin-bottom:-6px"><FONT SIZE="1">&nbsp;</FONT></P> <P
STYLE="margin-top:0px;margin-bottom:0px; margin-left:4%"><FONT FACE="Times New Roman" SIZE="2"><U>Pricing Generally</U>: Pricing for laboratory testing services provided by Contractor to Quest Diagnostics shall be in accordance with the Pricing
Schedule attached as Exhibit Quest A. </FONT></P> <P STYLE="margin-top:0px;margin-bottom:-6px"><FONT SIZE="1">&nbsp;</FONT></P>
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<TD WIDTH="5%" VALIGN="top" ALIGN="left"><FONT FACE="Times New Roman" SIZE="2">(a)</FONT></TD>
<TD ALIGN="left" VALIGN="top"><FONT FACE="Times New Roman" SIZE="2">Most Favored Nations: Quest Diagnostics shall receive most favored nation pricing PhenoSense GT testing services provided by Contractor under this Agreement as follows: If at any
time during the term of this Agreement, Contractor provides pricing (including the effect of any discounts, credits or other allowances) that is lower than the pricing provided to Quest Diagnostics for PhenoSense GT performed by Contractor under
this Agreement to any commercial laboratory customer of Contractor that is a commercial local or regional laboratory, that purchases similar or lesser volumes of those tests, Contractor shall immediately (i) decrease Quest Diagnostics&#146; pricing
so that pricing afforded to Quest Diagnostics is equal to or lower than the prices afforded to that commercial local or regional laboratory customer, and (ii) notify Quest Diagnostics of the price decrease. Throughout the term of this Agreement,
Quest Diagnostics shall have the right, at its expense and subject to confidentiality undertakings reasonably satisfactory to Contractor, to cause a major independent auditing firm, not doing business with either Quest Diagnostics or Contractor, to
audit Contractor&#146;s prices to its customers to ensure compliance with this Section. If any discrepancies are found, Quest Diagnostics shall receive, at its option, a refund or credit for all monies paid in excess of the amount that would have
been payable had Contractor afforded Quest Diagnostics pricing consistent with this most favored nations pricing provision beginning from the date the other customer was afforded lower pricing and continuing for so long as Quest Diagnostics paid the
excess amounts. However, Quest Diagnostics agrees that in the event that any of its individual business units do not make available all of the ViroLogic products listed on Exhibit A in accordance with this agreement, these obligations with respect
to Most Favored Nations pricing for PhenoSense GT shall be null and void. </FONT></TD></TR></TABLE> <P STYLE="margin-top:0px;margin-bottom:0px"><FONT SIZE="1">&nbsp;</FONT></P>
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<TD WIDTH="4%" VALIGN="top" ALIGN="left"><FONT FACE="Times New Roman" SIZE="2"><B>4.</B></FONT></TD>
<TD ALIGN="left" VALIGN="top"><FONT FACE="Times New Roman" SIZE="2"><B><U>Invoicing</U></B> </FONT></TD></TR></TABLE> <P STYLE="margin-top:0px;margin-bottom:-6px"><FONT SIZE="1">&nbsp;</FONT></P> <P
STYLE="margin-top:0px;margin-bottom:0px; margin-left:4%"><FONT FACE="Times New Roman" SIZE="2">Contractor shall invoice Quest Diagnostics on a monthly basis for all testing performed at the request of Quest Diagnostics. Invoices shall be provided to
such physical or email addresses as Quest Diagnostics may designate from time to time. Accrued, undisputed fees shall be paid to Contractor within thirty (30) days of Quest Diagnostics&#146; receipt of invoices. All invoices shall be in sufficient
detail, as reasonably requested by Quest Diagnostics, to identify the tests completed and the price per test. Failure of Contractor to submit invoices in the time required or to provide sufficient documentation as requested shall be a basis to deny
a claim for payment. Contractor will not be entitled to receive payment for services that produce invalid test results, except where the cause of such invalid result is Quest Diagnostics referring of an untestable specimen to Contractor (e.g., the
specimen was too old). If services are rendered on behalf of a Medicaid patient residing in a state in which applicable Medicaid regulations require that laboratory services rendered to a Medicaid recipient be billed only by the laboratory
performing the testing services, Contractor shall, if requested by Quest Diagnostics, bill such services to Medicaid, and accept payment from Medicaid as full payment for those services. </FONT></P> <P STYLE="margin-top:0px;margin-bottom:0px"><FONT
SIZE="1">&nbsp;</FONT></P> <P STYLE="margin-top:0px;margin-bottom:0px"><FONT FACE="Times New Roman" SIZE="2">[*] = C<SMALL>ERTAIN</SMALL> <SMALL>CONFIDENTIAL</SMALL> <SMALL>INFORMATION</SMALL> <SMALL>CONTAINED</SMALL> <SMALL>IN</SMALL>
<SMALL>THIS</SMALL> <SMALL>DOCUMENT</SMALL>, <SMALL>MARKED</SMALL> <SMALL>BY</SMALL> <SMALL>BRACKETS</SMALL>, <SMALL>HAS</SMALL> <SMALL>BEEN</SMALL> <SMALL>OMITTED</SMALL> <SMALL>AND</SMALL> <SMALL>FILED</SMALL> <SMALL>SEPARATELY</SMALL>
<SMALL>WITH</SMALL> <SMALL>THE</SMALL> S<SMALL>ECURITIES</SMALL> <SMALL>AND</SMALL> E<SMALL>XCHANGE</SMALL> C<SMALL>OMMISSION</SMALL> <SMALL>PURSUANT</SMALL> <SMALL>TO</SMALL> R<SMALL>ULE</SMALL> 24<SMALL>B</SMALL>-2 <SMALL>OF</SMALL>
<SMALL>THE</SMALL> S<SMALL>ECURITIES</SMALL> E<SMALL>XCHANGE</SMALL> A<SMALL>CT</SMALL> <SMALL>OF</SMALL> 1934, <SMALL>AS</SMALL> <SMALL>AMENDED</SMALL>. </FONT></P> <P STYLE="margin-top:0px;margin-bottom:0px"><FONT SIZE="1">&nbsp;</FONT></P>
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<TD WIDTH="4%" VALIGN="top" ALIGN="left"><FONT FACE="Times New Roman" SIZE="2"><B>5.</B></FONT></TD>
<TD ALIGN="left" VALIGN="top"><FONT FACE="Times New Roman" SIZE="2"><B><U>Preferred Provider Relationship</U></B> </FONT></TD></TR></TABLE> <P STYLE="margin-top:0px;margin-bottom:-6px"><FONT SIZE="1">&nbsp;</FONT></P>
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<TD WIDTH="5%" VALIGN="top" ALIGN="left"><FONT FACE="Times New Roman" SIZE="2">a)</FONT></TD>
<TD ALIGN="left" VALIGN="top"><FONT FACE="Times New Roman" SIZE="2"><U>Customer Support: </U>Contractor will provide Payor Relations support with all payor types to establish medical policy for HIV RT and increase reimbursement rates where needed.
Contractor will educate HIV providers regarding the availability of its products through Quest Diagnostics. </FONT></TD></TR></TABLE> <P STYLE="margin-top:0px;margin-bottom:-6px"><FONT SIZE="1">&nbsp;</FONT></P>
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<TD WIDTH="8%"><FONT SIZE="1">&nbsp;</FONT></TD>
<TD WIDTH="5%" VALIGN="top" ALIGN="left"><FONT FACE="Times New Roman" SIZE="2">b)</FONT></TD>
<TD ALIGN="left" VALIGN="top"><FONT FACE="Times New Roman" SIZE="2"><U>Exclusivity and Product Offering</U>: Within 10 business days upon execution of this Agreement Quest Diagnostic&#146;s will make unique test codes available throughout it&#146;s
network of laboratories for Contractors products listed on Exhibit A hereto and will use best efforts to ensure that those product test codes are the same across all Quest business units. Contractor agrees to make Quest Diagnostics its exclusive
nationwide distributor for the term of this agreement, (nationwide distributor is defined for purposes of this agreement as a laboratory offering full scope of testing services including routine diagnostics and esoteric testing, anatomic pathology,
drug testing, clinical trials throughout the majority of the United States) for its PhenoSense GT assay nothing herein is intended to prohibit Contractor from distributing its products directly or through local or regional laboratories. Quest
Diagnostics agrees that in the event that any of its individual business units do not make available all ViroLogic products listed on Exhibit A in accordance with this agreement, ViroLogic may, in its sole discretion, terminate this nationwide
exclusivity of the PSGT offering at any time during this Agreement. </FONT></TD></TR></TABLE> <P STYLE="margin-top:0px;margin-bottom:0px"><FONT SIZE="1">&nbsp;</FONT></P>
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<TD WIDTH="4%" VALIGN="top" ALIGN="left"><FONT FACE="Times New Roman" SIZE="2"><B>6.</B></FONT></TD>
<TD ALIGN="left" VALIGN="top"><FONT FACE="Times New Roman" SIZE="2"><B><U>Non-solicitation of Clients Trade Secrets:</U></B> </FONT></TD></TR></TABLE> <P STYLE="margin-top:0px;margin-bottom:-6px"><FONT SIZE="1">&nbsp;</FONT></P>
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<TD WIDTH="8%"><FONT SIZE="1">&nbsp;</FONT></TD>
<TD WIDTH="5%" VALIGN="top" ALIGN="left"><FONT FACE="Times New Roman" SIZE="2">(a)</FONT></TD>
<TD ALIGN="left" VALIGN="top"><FONT FACE="Times New Roman" SIZE="2"><U>Trade Secrets</U>: Contractor understands and acknowledges that should Quest Diagnostics provide any client-identifiable information to Contractor, such information shall be
considered a confidential trade secret of Quest Diagnostics that shall be treated and protected with the same care that Contractor would treat similar information of its own, but with no less than a reasonable degree of care.
</FONT></TD></TR></TABLE> <P STYLE="margin-top:0px;margin-bottom:-6px"><FONT SIZE="1">&nbsp;</FONT></P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR>
<TD WIDTH="8%"><FONT SIZE="1">&nbsp;</FONT></TD>
<TD WIDTH="5%" VALIGN="top" ALIGN="left"><FONT FACE="Times New Roman" SIZE="2">(b)</FONT></TD>
<TD ALIGN="left" VALIGN="top"><FONT FACE="Times New Roman" SIZE="2"><U>Non-Solicitation</U>: Contractor agrees that during the term of this Agreement, or any renewals thereof, and for a period of one year thereafter, it will not knowingly utilize
information acquired from the business relationship with Quest Diagnostics to directly solicit business from Quest Diagnostics&#146; clients. </FONT></TD></TR></TABLE> <P STYLE="margin-top:0px;margin-bottom:0px"><FONT SIZE="1">&nbsp;</FONT></P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR>
<TD WIDTH="4%" VALIGN="top" ALIGN="left"><FONT FACE="Times New Roman" SIZE="2"><B>7.</B></FONT></TD>
<TD ALIGN="left" VALIGN="top"><FONT FACE="Times New Roman" SIZE="2"><B><U>Tests Added During the Contract Period</U></B> </FONT></TD></TR></TABLE> <P STYLE="margin-top:0px;margin-bottom:-6px"><FONT SIZE="1">&nbsp;</FONT></P> <P
STYLE="margin-top:0px;margin-bottom:0px; margin-left:4%"><FONT FACE="Times New Roman" SIZE="2">From time to time, Quest Diagnostics may request Contractor to provide additional tests not currently performed by Contractor and/or to consolidate
additional tests with Contractor that Quest Diagnostics currently sends to other reference laboratories. Upon mutual written agreement between Contractor and Quest Diagnostics, Contractor shall set up the test(s) requested within its laboratory,
within six (6) to ten (10) weeks of Quest Diagnostics&#146; request, and shall obtain all necessary legal and regulatory approvals required to perform such test(s) and to sell such testing services to Quest Diagnostics. If more than six (6) to ten
(10) weeks are required to set up such test(s), Contractor shall notify Quest Diagnostics of the necessary set up time when Quest Diagnostics requests such test(s) and Quest Diagnostics and Contractor shall negotiate in good faith regarding the
appropriate pricing for such tests. </FONT></P> <P STYLE="margin-top:0px;margin-bottom:0px"><FONT SIZE="1">&nbsp;</FONT></P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR>
<TD WIDTH="4%" VALIGN="top" ALIGN="left"><FONT FACE="Times New Roman" SIZE="2"><B>8.</B></FONT></TD>
<TD ALIGN="left" VALIGN="top"><FONT FACE="Times New Roman" SIZE="2"><B><U>Business Reviews</U></B> </FONT></TD></TR></TABLE> <P STYLE="margin-top:0px;margin-bottom:-6px"><FONT SIZE="1">&nbsp;</FONT></P> <P
STYLE="margin-top:0px;margin-bottom:0px; margin-left:4%"><FONT FACE="Times New Roman" SIZE="2">Contractor agrees that Quest Diagnostics shall have the right to perform quality assurance audits. All audits will be used by Quest Diagnostics solely to
evaluate Contractor&#146;s performance of the services under this Agreement. Such audits may include onsite inspections to evaluate </FONT></P> <P STYLE="margin-top:0px;margin-bottom:0px"><FONT SIZE="1">&nbsp;</FONT></P> <P
STYLE="margin-top:0px;margin-bottom:0px"><FONT FACE="Times New Roman" SIZE="2">[*] = C<SMALL>ERTAIN</SMALL> <SMALL>CONFIDENTIAL</SMALL> <SMALL>INFORMATION</SMALL> <SMALL>CONTAINED</SMALL> <SMALL>IN</SMALL> <SMALL>THIS</SMALL>
<SMALL>DOCUMENT</SMALL>, <SMALL>MARKED</SMALL> <SMALL>BY</SMALL> <SMALL>BRACKETS</SMALL>, <SMALL>HAS</SMALL> <SMALL>BEEN</SMALL> <SMALL>OMITTED</SMALL> <SMALL>AND</SMALL> <SMALL>FILED</SMALL> <SMALL>SEPARATELY</SMALL> <SMALL>WITH</SMALL>
<SMALL>THE</SMALL> S<SMALL>ECURITIES</SMALL> <SMALL>AND</SMALL> E<SMALL>XCHANGE</SMALL> C<SMALL>OMMISSION</SMALL> <SMALL>PURSUANT</SMALL> <SMALL>TO</SMALL> R<SMALL>ULE</SMALL> 24<SMALL>B</SMALL>-2 <SMALL>OF</SMALL> <SMALL>THE</SMALL>
S<SMALL>ECURITIES</SMALL> E<SMALL>XCHANGE</SMALL> A<SMALL>CT</SMALL> <SMALL>OF</SMALL> 1934, <SMALL>AS</SMALL> <SMALL>AMENDED</SMALL>. </FONT></P> <P STYLE="margin-top:0px;margin-bottom:0px"><FONT SIZE="1">&nbsp;</FONT></P>
 <P STYLE="margin-top:0px;margin-bottom:0px" ALIGN="center"><FONT FACE="Times New Roman" SIZE="2">4 </FONT></P>


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 <P STYLE="margin-top:0px;margin-bottom:0px; margin-left:4%"><FONT FACE="Times New Roman" SIZE="2">Contractor&#146;s processes against a Quest Diagnostics&#146; checklist used for reference laboratory
providers to monitor compliance with regulatory standards and all Quest Diagnostics&#146; quality assurance requirements. Quest Diagnostics reserves the right to hold formal performance reviews every six months. These reviews shall include, but not
be limited to, contract performance, customer satisfaction, issues/opportunities, new test requirements, technology/overview and general operational issues. </FONT></P> <P STYLE="margin-top:0px;margin-bottom:0px"><FONT SIZE="1">&nbsp;</FONT></P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR>
<TD WIDTH="4%" VALIGN="top" ALIGN="left"><FONT FACE="Times New Roman" SIZE="2"><B>9.</B></FONT></TD>
<TD ALIGN="left" VALIGN="top"><FONT FACE="Times New Roman" SIZE="2"><B><U>Promotional Material</U></B> </FONT></TD></TR></TABLE> <P STYLE="margin-top:0px;margin-bottom:-6px"><FONT SIZE="1">&nbsp;</FONT></P> <P
STYLE="margin-top:0px;margin-bottom:0px; margin-left:4%"><FONT FACE="Times New Roman" SIZE="2">Neither party shall use the name, symbol, logo or any trademark or service mark of the other party in any promotional or advertising material, nor for any
other purpose unless advance written consent has been received from the other party. Except that, for the purposes of educating physicians, Contractor may issue client letters, marketing information and other promotional materials that reference
Quest Diagnostics and the Agreement. Contractor will seek Quest Diagnostics review and approval of all such materials which approval shall not be unreasonably withheld. The terms of this Agreement may require SEC disclosure on behalf of Contractor
and in such event Contractor will comply with such disclosure requirements, however, Contractor agrees to provide a draft of any such 8K or press release to Quest Diagnostics for comments. </FONT></P> <P
STYLE="margin-top:0px;margin-bottom:0px"><FONT SIZE="1">&nbsp;</FONT></P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR>
<TD WIDTH="4%" VALIGN="top" ALIGN="left"><FONT FACE="Times New Roman" SIZE="2"><B>10.</B></FONT></TD>
<TD ALIGN="left" VALIGN="top"><FONT FACE="Times New Roman" SIZE="2"><B><U>Proprietary Information</U></B> </FONT></TD></TR></TABLE> <P STYLE="margin-top:0px;margin-bottom:-6px"><FONT SIZE="1">&nbsp;</FONT></P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR>
<TD WIDTH="8%"><FONT SIZE="1">&nbsp;</FONT></TD>
<TD WIDTH="5%" VALIGN="top" ALIGN="left"><FONT FACE="Times New Roman" SIZE="2">(a)</FONT></TD>
<TD ALIGN="left" VALIGN="top"><FONT FACE="Times New Roman" SIZE="2"><U>Confidential Information</U>: Contractor and Quest Diagnostics acknowledge that they may gain access to the other&#146;s confidential business information in the course of
performing their obligations under this Agreement. Except as required by law or legal process, Contractor and Quest Diagnostics each agrees that it will not use (except as required by those employees, officers, directors, or consultants, acting
pursuant to this Agreement or as required by law or legal process) or disclose to third parties the following information: client lists, information related to proprietary research techniques and technology, types of supplies, pricing for supplies,
patient information (including but not limited to, social security numbers, addresses, insurance information, results, and diagnosis information), and any information that the disclosing party marks with the word &#147;confidential&#148; at the time
of disclosure (together &#147;Confidential Information&#148;). Contractor and Quest Diagnostics each agrees to treat such Confidential Information it receives from the other with the same degree of care that it treats its own proprietary
information, but with no less than a reasonable degree of care. </FONT></TD></TR></TABLE> <P STYLE="margin-top:0px;margin-bottom:-6px"><FONT SIZE="1">&nbsp;</FONT></P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR>
<TD WIDTH="8%"><FONT SIZE="1">&nbsp;</FONT></TD>
<TD WIDTH="5%" VALIGN="top" ALIGN="left"><FONT FACE="Times New Roman" SIZE="2">(b)</FONT></TD>
<TD ALIGN="left" VALIGN="top"><FONT FACE="Times New Roman" SIZE="2"><U>Exceptions to Confidential Information</U>: Notwithstanding subsection (a) above, information shall not be deemed Confidential Information if it (i) is or becomes generally known
to the public through no unlawful act of the recipient; (ii) was known to the recipient at the time of disclosure; (iii) is disclosed with the prior written approval of the disclosing party; (iv) was independently developed by the recipient without
any use of the disclosing party&#146;s Confidential Information; (v) becomes known to the recipient from a source other than the disclosing party without breach of this Agreement and otherwise not in violation of the disclosing party&#146;s rights;
or (vi) is required to be disclosed in accordance with law or court order. </FONT></TD></TR></TABLE> <P STYLE="margin-top:0px;margin-bottom:-6px"><FONT SIZE="1">&nbsp;</FONT></P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR>
<TD WIDTH="8%"><FONT SIZE="1">&nbsp;</FONT></TD>
<TD WIDTH="5%" VALIGN="top" ALIGN="left"><FONT FACE="Times New Roman" SIZE="2">(c)</FONT></TD>
<TD ALIGN="left" VALIGN="top"><FONT FACE="Times New Roman" SIZE="2"><U>Return of Confidential Information</U>: Each party shall promptly return all Confidential Information of the other party it holds in written form and all copies of it upon the
other party&#146;s written demand, except for Confidential Information that may be incorporated in any information that the recipient is required to maintain by law to verify the work that it performed, which may be retained by the recipient subject
to the restrictions contained in this Section 9. </FONT></TD></TR></TABLE> <P STYLE="margin-top:0px;margin-bottom:0px"><FONT SIZE="1">&nbsp;</FONT></P> <P STYLE="margin-top:0px;margin-bottom:0px"><FONT FACE="Times New Roman" SIZE="2">[*] =
C<SMALL>ERTAIN</SMALL> <SMALL>CONFIDENTIAL</SMALL> <SMALL>INFORMATION</SMALL> <SMALL>CONTAINED</SMALL> <SMALL>IN</SMALL> <SMALL>THIS</SMALL> <SMALL>DOCUMENT</SMALL>, <SMALL>MARKED</SMALL> <SMALL>BY</SMALL> <SMALL>BRACKETS</SMALL>, <SMALL>HAS</SMALL>
<SMALL>BEEN</SMALL> <SMALL>OMITTED</SMALL> <SMALL>AND</SMALL> <SMALL>FILED</SMALL> <SMALL>SEPARATELY</SMALL> <SMALL>WITH</SMALL> <SMALL>THE</SMALL> S<SMALL>ECURITIES</SMALL> <SMALL>AND</SMALL> E<SMALL>XCHANGE</SMALL> C<SMALL>OMMISSION</SMALL>
<SMALL>PURSUANT</SMALL> <SMALL>TO</SMALL> R<SMALL>ULE</SMALL> 24<SMALL>B</SMALL>-2 <SMALL>OF</SMALL> <SMALL>THE</SMALL> S<SMALL>ECURITIES</SMALL> E<SMALL>XCHANGE</SMALL> A<SMALL>CT</SMALL> <SMALL>OF</SMALL> 1934, <SMALL>AS</SMALL>
<SMALL>AMENDED</SMALL>. </FONT></P> <P STYLE="margin-top:0px;margin-bottom:0px"><FONT SIZE="1">&nbsp;</FONT></P>
 <P STYLE="margin-top:0px;margin-bottom:0px" ALIGN="center"><FONT FACE="Times New Roman" SIZE="2">5 </FONT></P>


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<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR>
<TD WIDTH="4%" VALIGN="top" ALIGN="left"><FONT FACE="Times New Roman" SIZE="2"><B>11.</B></FONT></TD>
<TD ALIGN="left" VALIGN="top"><FONT FACE="Times New Roman" SIZE="2"><B><U>Indemnification, Insurance and Notice</U></B> </FONT></TD></TR></TABLE> <P STYLE="margin-top:0px;margin-bottom:-6px"><FONT SIZE="1">&nbsp;</FONT></P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR>
<TD WIDTH="8%"><FONT SIZE="1">&nbsp;</FONT></TD>
<TD WIDTH="5%" VALIGN="top" ALIGN="left"><FONT FACE="Times New Roman" SIZE="2">(a)</FONT></TD>
<TD ALIGN="left" VALIGN="top"><FONT FACE="Times New Roman" SIZE="2"><U>Indemnification</U>: Contractor agrees to indemnify, defend and hold Quest Diagnostics, including its subsidiaries and affiliates and their employees, agents, servants and
representatives, harmless from any claim, liability, loss, suit, damage, cost or expense, including reasonable attorneys&#146; fees and expenses (collectively &#147;Claims&#148;), including wrongful death, to the extent arising out of or
attributable to the negligence, breach of this Agreement or willful misconduct of Contractor, its employees, subcontractors, directors and officers related to this Agreement, including, but not limited to, any third party billing Claims brought
against Quest Diagnostics arising out of Contractor&#146;s failure to inform Quest Diagnostics of a test methodology change, and any Claims brought against Quest Diagnostics based upon, arising out of or attributable to Quest Diagnostics&#146;
hiring or supervision of Contractor. </FONT></TD></TR></TABLE> <P STYLE="margin-top:0px;margin-bottom:-6px"><FONT SIZE="1">&nbsp;</FONT></P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR>
<TD WIDTH="8%"><FONT SIZE="1">&nbsp;</FONT></TD>
<TD WIDTH="5%" VALIGN="top" ALIGN="left"><FONT FACE="Times New Roman" SIZE="2">(b)</FONT></TD>
<TD ALIGN="left" VALIGN="top"><FONT FACE="Times New Roman" SIZE="2"><U>Indemnification Procedure</U>: Quest Diagnostics shall notify Contractor of any Claim for which indemnification is sought. Contractor shall have the right to control the
investigation, trial and defense of any lawsuit or action (including all negotiations to effect settlement) and any appeal arising there from and to employ or engage attorneys of its own choice. Quest Diagnostics may, at its own cost, participate in
such investigation, trial and defense of such lawsuit or action and may take an appeal from any resulting adverse judgment. Quest Diagnostics shall cooperate with Contractor, at Contractor&#146;s expense, at all times during the pendency of the
Claim or lawsuit, including, without limitation, providing it with all available information concerning the Claim. Contractor shall not enter into any settlement agreement, consent judgment or admission of liability on behalf of Quest Diagnostics
without its prior written consent, which consent shall not be unreasonably withheld. </FONT></TD></TR></TABLE> <P STYLE="margin-top:0px;margin-bottom:-6px"><FONT SIZE="1">&nbsp;</FONT></P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR>
<TD WIDTH="8%"><FONT SIZE="1">&nbsp;</FONT></TD>
<TD WIDTH="5%" VALIGN="top" ALIGN="left"><FONT FACE="Times New Roman" SIZE="2">(c)</FONT></TD>
<TD ALIGN="left" VALIGN="top"><FONT FACE="Times New Roman" SIZE="2"><U>Insurance:</U> Contractor agrees to maintain professional liability and commercial general liability insurance to cover its services provided hereunder in the minimum amounts of
Three Million Dollars ($3,000,000) per claim and Five Million Dollars ($5,000,000) annual aggregate. Contractor agrees to furnish Quest Diagnostics with a current and valid certificate of insurance from Contractor&#146;s insurance carrier verifying
the nature and amounts of coverage (or if Contractor self insures, documented proof of the existence of a self-insurance program meeting the requirements hereof), and Contractor agrees to keep and maintain such insurance (or self-insurance) coverage
in full force and effect during the term of this Agreement. If such insurance is of the &#147;claims made&#148; type, Contractor agrees that the insurance shall be continued for a period of at least four (4) years after the termination of this
Agreement, or Contractor shall purchase extended reporting period insurance (also known as &#147;tail coverage&#148;) to extend the insurance for a minimum of four (4) years after the termination of this Agreement. </FONT></TD></TR></TABLE> <P
STYLE="margin-top:0px;margin-bottom:0px"><FONT SIZE="1">&nbsp;</FONT></P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR>
<TD WIDTH="4%" VALIGN="top" ALIGN="left"><FONT FACE="Times New Roman" SIZE="2"><B>12.</B></FONT></TD>
<TD ALIGN="left" VALIGN="top"><FONT FACE="Times New Roman" SIZE="2"><B><U>Regulatory Compliance</U></B> </FONT></TD></TR></TABLE> <P STYLE="margin-top:0px;margin-bottom:-6px"><FONT SIZE="1">&nbsp;</FONT></P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR>
<TD WIDTH="8%"><FONT SIZE="1">&nbsp;</FONT></TD>
<TD WIDTH="5%" VALIGN="top" ALIGN="left"><FONT FACE="Times New Roman" SIZE="2">(a)</FONT></TD>
<TD ALIGN="left" VALIGN="top"><FONT FACE="Times New Roman" SIZE="2"><U>Compliance with Law/Material Breach</U>: Each party represents and warrants that in the performance of its obligations under this Agreement, it will comply with all applicable
laws, rules or regulations (&#147;Applicable Laws&#148;), including, but not limited to, the federal Physician Self-Referral Law, 42 U.S.C. 1395nn (&#147;Stark Law&#148;), and the regulations promulgated thereunder, similar state physician
self-referral laws and regulations, the federal Medicare/Medicaid Anti-kickback Law (42 USC 13202-7b) and regulations promulgated thereunder and similar state Anti-kickback laws and regulations, the Health Insurance Portability and Accountability
Act (&#147;HIPAA&#148;) regulations. Failure by either party to comply with any Applicable Law as required hereby shall be considered a material breach of this Agreement. In the event of a determination that this Agreement is not in compliance with
any Applicable Law, then the parties shall negotiate in good faith to bring this Agreement into compliance. All amendments to this Agreement to bring this Agreement into </FONT></TD></TR></TABLE> <P STYLE="margin-top:0px;margin-bottom:0px"><FONT
SIZE="1">&nbsp;</FONT></P> <P STYLE="margin-top:0px;margin-bottom:0px"><FONT FACE="Times New Roman" SIZE="2">[*] = C<SMALL>ERTAIN</SMALL> <SMALL>CONFIDENTIAL</SMALL> <SMALL>INFORMATION</SMALL> <SMALL>CONTAINED</SMALL> <SMALL>IN</SMALL>
<SMALL>THIS</SMALL> <SMALL>DOCUMENT</SMALL>, <SMALL>MARKED</SMALL> <SMALL>BY</SMALL> <SMALL>BRACKETS</SMALL>, <SMALL>HAS</SMALL> <SMALL>BEEN</SMALL> <SMALL>OMITTED</SMALL> <SMALL>AND</SMALL> <SMALL>FILED</SMALL> <SMALL>SEPARATELY</SMALL>
<SMALL>WITH</SMALL> <SMALL>THE</SMALL> S<SMALL>ECURITIES</SMALL> <SMALL>AND</SMALL> E<SMALL>XCHANGE</SMALL> C<SMALL>OMMISSION</SMALL> <SMALL>PURSUANT</SMALL> <SMALL>TO</SMALL> R<SMALL>ULE</SMALL> 24<SMALL>B</SMALL>-2 <SMALL>OF</SMALL>
<SMALL>THE</SMALL> S<SMALL>ECURITIES</SMALL> E<SMALL>XCHANGE</SMALL> A<SMALL>CT</SMALL> <SMALL>OF</SMALL> 1934, <SMALL>AS</SMALL> <SMALL>AMENDED</SMALL>. </FONT></P> <P STYLE="margin-top:0px;margin-bottom:0px"><FONT SIZE="1">&nbsp;</FONT></P>
 <P STYLE="margin-top:0px;margin-bottom:0px" ALIGN="center"><FONT FACE="Times New Roman" SIZE="2">6 </FONT></P>


<p Style='page-break-before:always'>
<HR  SIZE="3" COLOR="#999999" WIDTH="100%" ALIGN="CENTER">

 <P STYLE="margin-top:0px;margin-bottom:0px; margin-left:8%"><FONT FACE="Times New Roman" SIZE="2">compliance must be mutually agreed to by both parties in writing. If such agreement cannot be reached,
either party may terminate this Agreement by written notice to the other party. </FONT></P> <P STYLE="margin-top:0px;margin-bottom:-6px"><FONT SIZE="1">&nbsp;</FONT></P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR>
<TD WIDTH="4%"><FONT SIZE="1">&nbsp;</FONT></TD>
<TD WIDTH="4%" VALIGN="top" ALIGN="left"><FONT FACE="Times New Roman" SIZE="2">(b)</FONT></TD>
<TD ALIGN="left" VALIGN="top"><FONT FACE="Times New Roman" SIZE="2"><U>HIPAA Compliance</U>: Each party represents and warrants that with respect to all protected health information (as that term is defined in the Privacy Regulations), it is a
covered entity (and not a business associate of the other party) under the Privacy Regulations and that it shall protect the privacy, integrity, security, confidentiality and availability of the protected health information disclosed to, used by, or
exchanged by the parties by implementing and maintaining privacy and security policies, procedures, and practices, and administrative, physical and technological safeguards and security mechanisms that reasonably and adequately protect the
confidentiality, integrity and availability of the protected health information created, received, maintained or transmitted under this Agreement, all as required by, and set forth more specifically in, the Privacy Regulations and the Security
Regulations, as each may be amended from time to time. In the event HIPPA or the Privacy Regulations or Security Regulations require any addition to or modification of this Agreement, the parties shall use commercially reasonable efforts to agree
upon such additions or modifications in a timely manner. If such agreement cannot be reached in a timely manner, either party may terminate this Agreement by written notice to the other party. </FONT></TD></TR></TABLE> <P
STYLE="margin-top:0px;margin-bottom:-6px"><FONT SIZE="1">&nbsp;</FONT></P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR>
<TD WIDTH="4%"><FONT SIZE="1">&nbsp;</FONT></TD>
<TD WIDTH="4%" VALIGN="top" ALIGN="left"><FONT FACE="Times New Roman" SIZE="2">(c)</FONT></TD>
<TD ALIGN="left" VALIGN="top"><FONT FACE="Times New Roman" SIZE="2"><U>Federal Program Access to Records</U>: If payment for any laboratory services performed hereunder is made by a Federal Program, to assure compliance with 42 USC 1395X(v)(I),
until the expiration of four (4) years after the furnishing of laboratory services pursuant to this Agreement, Contractor shall, upon written request, make available to the Secretary of the Department of Health and Human Services (HHS), the
Comptroller General, or any of their duly authorized representatives, this Agreement, and any books, documents and records that are necessary to certify the nature and extent of the costs incurred by a health care provider that were performed under
this Agreement. This provision shall apply if the amount paid under this Agreement is $10,000 or more over a twelve (12) month period. </FONT></TD></TR></TABLE> <P STYLE="margin-top:0px;margin-bottom:-6px"><FONT SIZE="1">&nbsp;</FONT></P> <P
STYLE="margin-top:0px;margin-bottom:0px; margin-left:8%"><FONT FACE="Times New Roman" SIZE="2">The availability of Contractor&#146;s books, documents and records shall at all times be subject to such criteria and procedures for seeking or obtaining
access as may be promulgated by the Secretary of HHS in regulations, and other applicable laws. Contractor&#146;s disclosure under this provision will not be construed as a waiver of any legal rights to which Quest Diagnostics or Contractor may be
entitled under statute or regulation. </FONT></P> <P STYLE="margin-top:0px;margin-bottom:-6px"><FONT SIZE="1">&nbsp;</FONT></P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR>
<TD WIDTH="4%"><FONT SIZE="1">&nbsp;</FONT></TD>
<TD WIDTH="4%" VALIGN="top" ALIGN="left"><FONT FACE="Times New Roman" SIZE="2">(d)</FONT></TD>
<TD ALIGN="left" VALIGN="top"><FONT FACE="Times New Roman" SIZE="2"><U>Excluded Provider</U>: Each party represents and warrants that it is not an Excluded Provider. For purposes of this Section, the term &#147;Excluded Provider&#148; means a person
or entity that either (1) has been convicted of a crime related to health care, or (ii) is currently listed by a federal agency as debarred, excluded or otherwise ineligible for participation in federally funded programs (including without
limitation federally-funded health care programs such as Medicare and Medicaid). Either party shall notify the other within 5 days after the party receives notice that it is an Excluded Provider. The party receiving such notice shall have the right
to terminate this Agreement at any time after learning that the notifying party is an Excluded Provider. For purposes of this Section, &#147;Quest Diagnostics&#148; and &#147;Contractor&#148; shall include, as applicable, the (1) person entering
into this Agreement any partners, associates, or agents of that person (including without limitation subcontractors or employees providing Testing), or (2) the entity entering into this Agreement and any such entity&#146;s parent, principals,
shareholders, directors, and officers of such entity (including, without limitation, subcontractors or employees providing Testing). </FONT></TD></TR></TABLE> <P STYLE="margin-top:0px;margin-bottom:0px"><FONT SIZE="1">&nbsp;</FONT></P> <P
STYLE="margin-top:0px;margin-bottom:0px"><FONT FACE="Times New Roman" SIZE="2">[*] = C<SMALL>ERTAIN</SMALL> <SMALL>CONFIDENTIAL</SMALL> <SMALL>INFORMATION</SMALL> <SMALL>CONTAINED</SMALL> <SMALL>IN</SMALL> <SMALL>THIS</SMALL>
<SMALL>DOCUMENT</SMALL>, <SMALL>MARKED</SMALL> <SMALL>BY</SMALL> <SMALL>BRACKETS</SMALL>, <SMALL>HAS</SMALL> <SMALL>BEEN</SMALL> <SMALL>OMITTED</SMALL> <SMALL>AND</SMALL> <SMALL>FILED</SMALL> <SMALL>SEPARATELY</SMALL> <SMALL>WITH</SMALL>
<SMALL>THE</SMALL> S<SMALL>ECURITIES</SMALL> <SMALL>AND</SMALL> E<SMALL>XCHANGE</SMALL> C<SMALL>OMMISSION</SMALL> <SMALL>PURSUANT</SMALL> <SMALL>TO</SMALL> R<SMALL>ULE</SMALL> 24<SMALL>B</SMALL>-2 <SMALL>OF</SMALL> <SMALL>THE</SMALL>
S<SMALL>ECURITIES</SMALL> E<SMALL>XCHANGE</SMALL> A<SMALL>CT</SMALL> <SMALL>OF</SMALL> 1934, <SMALL>AS</SMALL> <SMALL>AMENDED</SMALL>. </FONT></P> <P STYLE="margin-top:0px;margin-bottom:0px"><FONT SIZE="1">&nbsp;</FONT></P>
 <P STYLE="margin-top:0px;margin-bottom:0px" ALIGN="center"><FONT FACE="Times New Roman" SIZE="2">7 </FONT></P>


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<HR  SIZE="3" COLOR="#999999" WIDTH="100%" ALIGN="CENTER">


<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR>
<TD WIDTH="4%"><FONT SIZE="1">&nbsp;</FONT></TD>
<TD WIDTH="4%" VALIGN="top" ALIGN="left"><FONT FACE="Times New Roman" SIZE="2">(e)</FONT></TD>
<TD ALIGN="left" VALIGN="top"><FONT FACE="Times New Roman" SIZE="2"><U>EEO, Small Business, Affirmative Action</U>: To the extent Contractor&#146;s services will be used by Quest Diagnostics in the performance of a federal government contract,
Contractor hereby certifies that all services provided in the United States are provided in compliance with all applicable requirements, orders and regulations of the United States Federal Government pertaining to nondiscrimination, equal employment
opportunity and affirmative action, including, without limitation, the following, as the same may be amended from time to time: (1) Executive Order 11246, as amended by Executive Order 11375, including 41 CFR Part 60.1 <I>et seq.</I> and 48 CFR
52.222-26, Equal Opportunity; (2) the Rehabilitation Act of 1973 (29 USC 793), as amended, including 41 CFR Part 60-741 <I>et seq.</I> and 48 CFR 52.222-36, Affirmative Action for Workers With Disabilities; (3) the Vietnam Era Veterans Readjustment
Assistance Act of 1974 (38 USC 4212), including 41 CFR Part 60-250 <I>et seq.</I> and 48 CFR 52.222-35, Equal Opportunity for Special Disabled Veterans, Veterans of the Vietnam Era, and Other Eligible Veterans; (4) the certification requirements for
nonsegregated facilities as ordered by the Secretary of Labor (32 F.R. 7439) and as required by 41 CFR Part 60-1 <I>et seq.</I>; (5) Executive Order 11141 (proscribing age discrimination); (6) the Service Contract Act of 1965, as amended (41 USC 351
<I>et seq.</I>) including 48 CFR 52.222-41; (7) 48 CFR 52.237-7, Indemnification and Medical Liability Insurance; and (8) all regulations, rules, orders and applicable contract clauses promulgated under (1) through (7) above and/or required by
federal, state or local law, rule or regulation to be included in this Agreement. Contractor agrees that until four years after payment under this Agreement Contractor will afford the Secretary of Health and Human Services, Comptroller General of
the United States or any of their duly authorized representatives, access to, and the right to examine, any pertinent books, documents, papers and records of the successful bidder or offer or involving transactions relating to this
Agreement.<B><U></U></B> </FONT></TD></TR></TABLE> <P STYLE="margin-top:0px;margin-bottom:0px"><FONT SIZE="1">&nbsp;</FONT></P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR>
<TD WIDTH="4%" VALIGN="top" ALIGN="left"><FONT FACE="Times New Roman" SIZE="2"><B>13.</B></FONT></TD>
<TD ALIGN="left" VALIGN="top"><FONT FACE="Times New Roman" SIZE="2"><B><U>Legislative / Regulatory Modification</U></B> </FONT></TD></TR></TABLE> <P STYLE="margin-top:0px;margin-bottom:-6px"><FONT SIZE="1">&nbsp;</FONT></P> <P
STYLE="margin-top:0px;margin-bottom:0px; margin-left:4%"><FONT FACE="Times New Roman" SIZE="2">In the event any Medicare and/or Medicaid laws, rules, regulations or payment policies; or any rules or policies of any third-party payer; or any other
federal, state or local law, rule, regulation or policy; or any interpretation thereof at any time during the term of this Agreement is modified, implemented, threatened to be implemented, or determined to prohibit or in any way materially change
the method or amount of reimbursement or payment (1) for services under this Agreement, or (2) for services to patients of a party necessitated as a result of this Agreement, or by virtue of the existence of this Agreement has or will materially
affect the ability of Quest Diagnostics to engage in any commercial activity on terms at least as favorable to Quest Diagnostics as those reasonably attributable as of the date hereof (all of the foregoing being hereinafter collectively referred to
as &#147;Changes,&#148; and individually, a &#147;Change&#148;), then the parties to this Agreement shall negotiate in good faith to amend this Agreement to provide for payment of compensation hereunder, while at the same time preserving the
economic expectations of the parties to the greatest extent possible in a manner consistent with any such Change(s). All amendments to this Agreement necessitated by such Change(s) must be mutually agreed to by both parties in writing. If such
agreement cannot be reached, either party may terminate this Agreement by written notice to the other party. </FONT></P> <P STYLE="margin-top:0px;margin-bottom:0px"><FONT SIZE="1">&nbsp;</FONT></P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR>
<TD WIDTH="4%" VALIGN="top" ALIGN="left"><FONT FACE="Times New Roman" SIZE="2"><B>14.</B></FONT></TD>
<TD ALIGN="left" VALIGN="top"><FONT FACE="Times New Roman" SIZE="2"><B><U>Termination</U></B> </FONT></TD></TR></TABLE> <P STYLE="margin-top:0px;margin-bottom:-6px"><FONT SIZE="1">&nbsp;</FONT></P> <P
STYLE="margin-top:0px;margin-bottom:0px; margin-left:4%"><FONT FACE="Times New Roman" SIZE="2">This Agreement may be terminated as follows: </FONT></P> <P STYLE="margin-top:0px;margin-bottom:-6px"><FONT SIZE="1">&nbsp;</FONT></P> <P
STYLE="margin-top:0px;margin-bottom:0px; margin-left:4%"><FONT FACE="Times New Roman" SIZE="2">(a) Upon the filing of a petition in bankruptcy by either party or the making by either party of an assignment for the benefit of creditors, or if any
involuntary petition in bankruptcy or petition for an arrangement pursuant to the Bankruptcy Act is filed against either party and is not dismissed within thirty (30) days; or if a receiver is appointed for the business of either party, or any part
thereof, the other party may immediately terminate this Agreement; </FONT></P> <P STYLE="margin-top:0px;margin-bottom:0px"><FONT SIZE="1">&nbsp;</FONT></P> <P STYLE="margin-top:0px;margin-bottom:0px"><FONT FACE="Times New Roman" SIZE="2">[*] =
C<SMALL>ERTAIN</SMALL> <SMALL>CONFIDENTIAL</SMALL> <SMALL>INFORMATION</SMALL> <SMALL>CONTAINED</SMALL> <SMALL>IN</SMALL> <SMALL>THIS</SMALL> <SMALL>DOCUMENT</SMALL>, <SMALL>MARKED</SMALL> <SMALL>BY</SMALL> <SMALL>BRACKETS</SMALL>, <SMALL>HAS</SMALL>
<SMALL>BEEN</SMALL> <SMALL>OMITTED</SMALL> <SMALL>AND</SMALL> <SMALL>FILED</SMALL> <SMALL>SEPARATELY</SMALL> <SMALL>WITH</SMALL> <SMALL>THE</SMALL> S<SMALL>ECURITIES</SMALL> <SMALL>AND</SMALL> E<SMALL>XCHANGE</SMALL> C<SMALL>OMMISSION</SMALL>
<SMALL>PURSUANT</SMALL> <SMALL>TO</SMALL> R<SMALL>ULE</SMALL> 24<SMALL>B</SMALL>-2 <SMALL>OF</SMALL> <SMALL>THE</SMALL> S<SMALL>ECURITIES</SMALL> E<SMALL>XCHANGE</SMALL> A<SMALL>CT</SMALL> <SMALL>OF</SMALL> 1934, <SMALL>AS</SMALL>
<SMALL>AMENDED</SMALL>. </FONT></P> <P STYLE="margin-top:0px;margin-bottom:0px"><FONT SIZE="1">&nbsp;</FONT></P>
 <P STYLE="margin-top:0px;margin-bottom:0px" ALIGN="center"><FONT FACE="Times New Roman" SIZE="2">8 </FONT></P>


<p Style='page-break-before:always'>
<HR  SIZE="3" COLOR="#999999" WIDTH="100%" ALIGN="CENTER">

 <P STYLE="margin-top:0px;margin-bottom:0px; margin-left:4%"><FONT FACE="Times New Roman" SIZE="2">(b) If action is taken against Contractor to revoke, suspend, or terminate its applicable federal or
state license(s) to operate a clinical laboratory, or to revoke, suspend or terminate participation in Medicaid, Medicare or other federally funded programs; and such action is not resolved within thirty (30) days of initiation thereof, Quest
Diagnostics may immediately terminate this Agreement; </FONT></P> <P STYLE="margin-top:0px;margin-bottom:-6px"><FONT SIZE="1">&nbsp;</FONT></P> <P STYLE="margin-top:0px;margin-bottom:0px; margin-left:4%"><FONT FACE="Times New Roman" SIZE="2">(c)
Either party may terminate this Agreement immediately on written notice if the other party has committed a material breach of this Agreement and has not cured such breach within thirty (30) days after written notice thereof by the non-breaching
party; and </FONT></P> <P STYLE="margin-top:0px;margin-bottom:-6px"><FONT SIZE="1">&nbsp;</FONT></P> <P STYLE="margin-top:0px;margin-bottom:0px; margin-left:4%"><FONT FACE="Times New Roman" SIZE="2">(d) In accordance with Sections 2(d), 12(a), 12(b)
and 13.<B></B> </FONT></P> <P STYLE="margin-top:0px;margin-bottom:0px"><FONT SIZE="1">&nbsp;</FONT></P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR>
<TD WIDTH="4%" VALIGN="top" ALIGN="left"><FONT FACE="Times New Roman" SIZE="2"><B>15.</B></FONT></TD>
<TD ALIGN="left" VALIGN="top"><FONT FACE="Times New Roman" SIZE="2"><B><U>Miscellaneous</U></B> </FONT></TD></TR></TABLE> <P STYLE="margin-top:0px;margin-bottom:-6px"><FONT SIZE="1">&nbsp;</FONT></P> <P
STYLE="margin-top:0px;margin-bottom:0px; margin-left:4%"><FONT FACE="Times New Roman" SIZE="2">(a) <U>Assignment:</U> Without the prior written consent of the other party hereto, which consent shall not be unreasonably withheld, neither party may
assign any of its rights or obligations hereunder. Notwithstanding anything to the contrary herein contained, either party may assign its rights or obligations hereunder in the entirety to its parent or any subsidiary or successor corporation
without prior written consent; provided, however, that nothing contained herein shall release the assigning party from its obligations hereunder. Subject to the foregoing, this Agreement inures to the benefit of, and is binding upon, the successors
and assigns of the parties hereto. </FONT></P> <P STYLE="margin-top:0px;margin-bottom:-6px"><FONT SIZE="1">&nbsp;</FONT></P> <P STYLE="margin-top:0px;margin-bottom:0px; margin-left:4%"><FONT FACE="Times New Roman" SIZE="2">(b) <U>Notice:</U> Except
as otherwise expressly provided in this Agreement, all notices hereunder shall be in writing, personally delivered, sent by certified mail, return receipt requested, or by confirmed facsimile, addressed to the other party as follows: </FONT></P> <P
STYLE="margin-top:0px;margin-bottom:0px"><FONT SIZE="1">&nbsp;</FONT></P>
<TABLE CELLSPACING="0" CELLPADDING="0" WIDTH="92%" BORDER="0" ALIGN="center">

<TR>
<TD WIDTH="22%"></TD>
<TD VALIGN="bottom" WIDTH="2%"></TD>
<TD WIDTH="76%"></TD></TR>
<TR>
<TD VALIGN="top"> <P STYLE="margin-left:1.00em; text-indent:-1.00em"><FONT FACE="Times New Roman" SIZE="2"><B>If&nbsp;to&nbsp;Contractor:</B></FONT></P></TD>
<TD VALIGN="bottom"><FONT SIZE="1">&nbsp;</FONT></TD>
<TD VALIGN="bottom"><FONT FACE="Times New Roman" SIZE="2">Kathy Hibbs, Esq</FONT></TD></TR>
<TR>
<TD VALIGN="top"><FONT SIZE="1">&nbsp;</FONT></TD>
<TD VALIGN="bottom"><FONT SIZE="1">&nbsp;</FONT></TD>
<TD VALIGN="bottom"><FONT FACE="Times New Roman" SIZE="2">Vice President and General Counsel</FONT></TD></TR>
<TR>
<TD VALIGN="top"><FONT SIZE="1">&nbsp;</FONT></TD>
<TD VALIGN="bottom"><FONT SIZE="1">&nbsp;</FONT></TD>
<TD VALIGN="bottom"><FONT FACE="Times New Roman" SIZE="2">ViroLogic, Inc.</FONT></TD></TR>
<TR>
<TD VALIGN="top"><FONT SIZE="1">&nbsp;</FONT></TD>
<TD VALIGN="bottom"><FONT SIZE="1">&nbsp;</FONT></TD>
<TD VALIGN="top"> <P STYLE="margin-left:1.00em; text-indent:-1.00em"><FONT FACE="Times New Roman" SIZE="2">Phone: (650)624-4243</FONT></P></TD></TR>
<TR>
<TD VALIGN="top"><FONT SIZE="1">&nbsp;</FONT></TD>
<TD VALIGN="bottom"><FONT SIZE="1">&nbsp;</FONT></TD>
<TD VALIGN="top"> <P STYLE="margin-left:1.00em; text-indent:-1.00em"><FONT FACE="Times New Roman" SIZE="2">Facsimile: (650) 635-1111</FONT></P></TD></TR>
<TR>
<TD HEIGHT="16"></TD>
<TD HEIGHT="16" COLSPAN="2"></TD></TR>
<TR>
<TD VALIGN="top"> <P STYLE="margin-left:1.00em; text-indent:-1.00em"><FONT FACE="Times New Roman" SIZE="2"><B>If&nbsp;to&nbsp;Quest&nbsp;Diagnostics:</B></FONT></P></TD>
<TD VALIGN="bottom"><FONT SIZE="1">&nbsp;</FONT></TD>
<TD VALIGN="bottom"><FONT FACE="Times New Roman" SIZE="2">Jerry Tramposh, Ph.D.</FONT></TD></TR>
<TR>
<TD VALIGN="top"><FONT SIZE="1">&nbsp;</FONT></TD>
<TD VALIGN="bottom"><FONT SIZE="1">&nbsp;</FONT></TD>
<TD VALIGN="bottom"><FONT FACE="Times New Roman" SIZE="2">Materials and Services Management</FONT></TD></TR>
<TR>
<TD VALIGN="top"><FONT SIZE="1">&nbsp;</FONT></TD>
<TD VALIGN="bottom"><FONT SIZE="1">&nbsp;</FONT></TD>
<TD VALIGN="bottom"><FONT FACE="Times New Roman" SIZE="2">Quest Diagnostics, Nichols Institute</FONT></TD></TR>
<TR>
<TD VALIGN="top"><FONT SIZE="1">&nbsp;</FONT></TD>
<TD VALIGN="bottom"><FONT SIZE="1">&nbsp;</FONT></TD>
<TD VALIGN="bottom"><FONT FACE="Times New Roman" SIZE="2">San Juan Capistrano, CA</FONT></TD></TR>
<TR>
<TD VALIGN="top"><FONT SIZE="1">&nbsp;</FONT></TD>
<TD VALIGN="bottom"><FONT SIZE="1">&nbsp;</FONT></TD>
<TD VALIGN="bottom"><FONT FACE="Times New Roman" SIZE="2">Phone: (800) 642-4657 ext. 4005</FONT></TD></TR>
<TR>
<TD VALIGN="top"><FONT SIZE="1">&nbsp;</FONT></TD>
<TD VALIGN="bottom"><FONT SIZE="1">&nbsp;</FONT></TD>
<TD VALIGN="bottom"><FONT FACE="Times New Roman" SIZE="2">Facsimile: (949) 728-4998</FONT></TD></TR>
</TABLE> <P STYLE="margin-top:0px;margin-bottom:0px"><FONT SIZE="1">&nbsp;</FONT></P> <P STYLE="margin-top:0px;margin-bottom:0px; margin-left:4%"><FONT FACE="Times New Roman" SIZE="2">Either party may
change its address to which notices shall be sent by a notice that conforms to the requirements of this subsection. </FONT></P> <P STYLE="margin-top:0px;margin-bottom:-6px"><FONT SIZE="1">&nbsp;</FONT></P> <P
STYLE="margin-top:0px;margin-bottom:0px; margin-left:4%"><FONT FACE="Times New Roman" SIZE="2">(c) <U>Entire Agreement</U>: This Agreement, including Exhibits A, B, and C, contains the entire understanding between Quest Diagnostics and Contractor
and supersedes any and all prior agreements, understandings, and arrangements between them relating to the subject matter hereof. No amendment, change modification or alteration of the terms and conditions hereof shall be binding unless in writing
and signed by the parties to be bound. </FONT></P> <P STYLE="margin-top:0px;margin-bottom:-6px"><FONT SIZE="1">&nbsp;</FONT></P> <P STYLE="margin-top:0px;margin-bottom:0px; margin-left:4%"><FONT FACE="Times New Roman" SIZE="2">(d) <U>Choice of
Law</U>: This Agreement shall be governed by and construed in accordance with the laws of the Commonwealth of Pennsylvania, without regard to its conflict of law principles. </FONT></P> <P STYLE="margin-top:0px;margin-bottom:-6px"><FONT
SIZE="1">&nbsp;</FONT></P> <P STYLE="margin-top:0px;margin-bottom:0px; margin-left:4%"><FONT FACE="Times New Roman" SIZE="2">(e) <U>Waiver</U>: The failure of either party to this Agreement to exercise or enforce any right conferred upon it
hereunder shall not be deemed to be a waiver of any such right nor operate to bar the exercise or performance thereof at any time or times thereafter, nor shall a waiver of any right hereunder at any given time be deemed a waiver thereof for any
other time.<U></U> </FONT></P> <P STYLE="margin-top:0px;margin-bottom:0px"><FONT SIZE="1">&nbsp;</FONT></P> <P STYLE="margin-top:0px;margin-bottom:0px"><FONT FACE="Times New Roman" SIZE="2">[*] = C<SMALL>ERTAIN</SMALL> <SMALL>CONFIDENTIAL</SMALL>
<SMALL>INFORMATION</SMALL> <SMALL>CONTAINED</SMALL> <SMALL>IN</SMALL> <SMALL>THIS</SMALL> <SMALL>DOCUMENT</SMALL>, <SMALL>MARKED</SMALL> <SMALL>BY</SMALL> <SMALL>BRACKETS</SMALL>, <SMALL>HAS</SMALL> <SMALL>BEEN</SMALL> <SMALL>OMITTED</SMALL>
<SMALL>AND</SMALL> <SMALL>FILED</SMALL> <SMALL>SEPARATELY</SMALL> <SMALL>WITH</SMALL> <SMALL>THE</SMALL> S<SMALL>ECURITIES</SMALL> <SMALL>AND</SMALL> E<SMALL>XCHANGE</SMALL> C<SMALL>OMMISSION</SMALL> <SMALL>PURSUANT</SMALL> <SMALL>TO</SMALL>
R<SMALL>ULE</SMALL> 24<SMALL>B</SMALL>-2 <SMALL>OF</SMALL> <SMALL>THE</SMALL> S<SMALL>ECURITIES</SMALL> E<SMALL>XCHANGE</SMALL> A<SMALL>CT</SMALL> <SMALL>OF</SMALL> 1934, <SMALL>AS</SMALL> <SMALL>AMENDED</SMALL>. </FONT></P> <P
STYLE="margin-top:0px;margin-bottom:0px"><FONT SIZE="1">&nbsp;</FONT></P>
 <P STYLE="margin-top:0px;margin-bottom:0px" ALIGN="center"><FONT FACE="Times New Roman" SIZE="2">9 </FONT></P>


<p Style='page-break-before:always'>
<HR  SIZE="3" COLOR="#999999" WIDTH="100%" ALIGN="CENTER">

 <P STYLE="margin-top:0px;margin-bottom:0px; margin-left:4%"><FONT FACE="Times New Roman" SIZE="2">(f) <U>Severability</U>: It is the intention of the parties that the provisions of this Agreement shall
be enforceable to the fullest extent permissible under applicable laws, and that the invalidity or unenforceability of any provisions under such laws will not render unenforceable, or impair, the remainder of the Agreement. If any provisions hereof
are deemed invalid or unenforceable, either in whole or in part, this Agreement will be deemed amended to modify, or delete, as necessary, the offending provisions and to alter the bounds thereof in order to render it valid and enforceable.
</FONT></P> <P STYLE="margin-top:0px;margin-bottom:-6px"><FONT SIZE="1">&nbsp;</FONT></P> <P STYLE="margin-top:0px;margin-bottom:0px; margin-left:4%"><FONT FACE="Times New Roman" SIZE="2">(g) <U>Non-Exclusive Arrangement:</U> Contractor acknowledges
that this is a non-exclusive arrangement and that this Agreement places no restrictions on Quest Diagnostics&#146; ability to refer laboratory testing to other laboratories and that Quest Diagnostics does not guarantee any minimum volume of
specimens to be referred to Contractor for testing under this Agreement. </FONT></P> <P STYLE="margin-top:0px;margin-bottom:-6px"><FONT SIZE="1">&nbsp;</FONT></P> <P STYLE="margin-top:0px;margin-bottom:0px; margin-left:4%"><FONT
FACE="Times New Roman" SIZE="2">(h) <U>Parties Bound</U>: For purposes of this Agreement, &#147;Quest Diagnostics&#148; shall include all direct and indirect subsidiaries, business units or affiliates of Quest Diagnostics engaged in the laboratory
services business in the continental United States in which Quest Diagnostics owns a majority of the equity interest. Any subsidiary or affiliate of Quest Diagnostics that is not a party to this Agreement shall have the option severally to join in
the terms hereof by providing at least thirty (30) days written notice to Contractor. Quest Diagnostics may, at its option, obtain services pursuant to the terms hereof on behalf of laboratories for which it provides management services only.
</FONT></P> <P STYLE="margin-top:0px;margin-bottom:-6px"><FONT SIZE="1">&nbsp;</FONT></P> <P STYLE="margin-top:0px;margin-bottom:0px; margin-left:4%"><FONT FACE="Times New Roman" SIZE="2">(i) <U>Relationship of the Parties:</U> Nothing contained in
this Agreement shall be construed as creating a joint venture, partnership, or employment relationship between the parties. Neither party is an agent of the other, and neither party has any authority whatsoever to bind the other party, by contract
or otherwise. </FONT></P> <P STYLE="margin-top:0px;margin-bottom:-6px"><FONT SIZE="1">&nbsp;</FONT></P> <P STYLE="margin-top:0px;margin-bottom:0px; margin-left:4%"><FONT FACE="Times New Roman" SIZE="2">(j) <U>Force Majeure</U>:<B> </B>Either party
shall be excused from non-performance or delay in performance to the extent that such non-performance or delay in performance arises out of causes beyond the control and without the fault or negligence of the non-performing party. Such cases
include, but are not limited to, acts of God, the public enemy or terrorism, acts of any government in either its sovereign or contractual capacity, fires, floods, epidemics, strikes or freight embargo. Each party shall promptly notify the other of
any such circumstances and its probable duration as a result of which such party claims its inability to perform this Agreement. </FONT></P> <P STYLE="margin-top:0px;margin-bottom:-6px"><FONT SIZE="1">&nbsp;</FONT></P> <P
STYLE="margin-top:0px;margin-bottom:0px; margin-left:4%"><FONT FACE="Times New Roman" SIZE="2">(k) <U>Section Headings</U>: Section headings contained in this Agreement are for reference purposes only and shall not affect, in any way, the meaning
and interpretation of this Agreement. </FONT></P> <P STYLE="margin-top:0px;margin-bottom:-6px"><FONT SIZE="1">&nbsp;</FONT></P> <P STYLE="margin-top:0px;margin-bottom:0px; margin-left:4%"><FONT FACE="Times New Roman" SIZE="2">(l) <U>Execution in
Counterparts</U>: This Agreement may be executed simultaneously in one or more counterparts, each of which shall be deemed an original, but all of which shall constitute the same instrument. </FONT></P> <P
STYLE="margin-top:0px;margin-bottom:-6px"><FONT SIZE="1">&nbsp;</FONT></P> <P STYLE="margin-top:0px;margin-bottom:0px; margin-left:4%"><FONT FACE="Times New Roman" SIZE="2">(m) <U>Surviva</U>l: The provisions of this Agreement which by their nature
are intended to survive termination of this Agreement shall so survive, including the provisions of Sections 4, 8, 9, 10, 11 and 15. </FONT></P> <P STYLE="margin-top:0px;margin-bottom:0px"><FONT SIZE="1">&nbsp;</FONT></P> <P
STYLE="margin-top:0px;margin-bottom:0px"><FONT FACE="Times New Roman" SIZE="2">[*] = C<SMALL>ERTAIN</SMALL> <SMALL>CONFIDENTIAL</SMALL> <SMALL>INFORMATION</SMALL> <SMALL>CONTAINED</SMALL> <SMALL>IN</SMALL> <SMALL>THIS</SMALL>
<SMALL>DOCUMENT</SMALL>, <SMALL>MARKED</SMALL> <SMALL>BY</SMALL> <SMALL>BRACKETS</SMALL>, <SMALL>HAS</SMALL> <SMALL>BEEN</SMALL> <SMALL>OMITTED</SMALL> <SMALL>AND</SMALL> <SMALL>FILED</SMALL> <SMALL>SEPARATELY</SMALL> <SMALL>WITH</SMALL>
<SMALL>THE</SMALL> S<SMALL>ECURITIES</SMALL> <SMALL>AND</SMALL> E<SMALL>XCHANGE</SMALL> C<SMALL>OMMISSION</SMALL> <SMALL>PURSUANT</SMALL> <SMALL>TO</SMALL> R<SMALL>ULE</SMALL> 24<SMALL>B</SMALL>-2 <SMALL>OF</SMALL> <SMALL>THE</SMALL>
S<SMALL>ECURITIES</SMALL> E<SMALL>XCHANGE</SMALL> A<SMALL>CT</SMALL> <SMALL>OF</SMALL> 1934, <SMALL>AS</SMALL> <SMALL>AMENDED</SMALL>. </FONT></P> <P STYLE="margin-top:0px;margin-bottom:0px"><FONT SIZE="1">&nbsp;</FONT></P>
 <P STYLE="margin-top:0px;margin-bottom:0px" ALIGN="center"><FONT FACE="Times New Roman" SIZE="2">10 </FONT></P>


<p Style='page-break-before:always'>
<HR  SIZE="3" COLOR="#999999" WIDTH="100%" ALIGN="CENTER">


<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR>
<TD WIDTH="4%" VALIGN="top" ALIGN="left"><FONT FACE="Times New Roman" SIZE="2"><B>16.</B></FONT></TD>
<TD ALIGN="left" VALIGN="top"><FONT FACE="Times New Roman" SIZE="2"><B><U>Medicare+Choice Regulations</U></B> </FONT></TD></TR></TABLE> <P STYLE="margin-top:0px;margin-bottom:-6px"><FONT SIZE="1">&nbsp;</FONT></P> <P
STYLE="margin-top:0px;margin-bottom:0px; margin-left:4%"><FONT FACE="Times New Roman" SIZE="2"><B>(This Section applies only when patients served under this Agreement include Medicare+Choice Beneficiaries under contracted Medicare+Choice Benefit
programs.) </B></FONT></P> <P STYLE="margin-top:0px;margin-bottom:-6px"><FONT SIZE="1">&nbsp;</FONT></P> <P STYLE="margin-top:0px;margin-bottom:0px; margin-left:4%"><FONT FACE="Times New Roman" SIZE="2">(a) <U>Compliance with Medicare+Choice</U>.
The terms and conditions herein are included to meet federal statutory and regulatory requirements of the federal Medicare+Choice Program under Part C of Title XVIII of the Social Security Act (&#147;Medicare+Choice Program&#148;). Notwithstanding
Section 11, Contractor understands that the specific terms as set forth herein are subject to amendment in accordance with federal statutory and regulatory changes to the Medicare+Choice Program. </FONT></P> <P
STYLE="margin-top:0px;margin-bottom:-6px"><FONT SIZE="1">&nbsp;</FONT></P> <P STYLE="margin-top:0px;margin-bottom:0px; margin-left:4%"><FONT FACE="Times New Roman" SIZE="2">(b) <U>Definitions</U>: For the purposes of this Agreement, the following
terms shall have the meanings set forth: </FONT></P> <P STYLE="margin-top:0px;margin-bottom:-6px"><FONT SIZE="1">&nbsp;</FONT></P> <P STYLE="margin-top:0px;margin-bottom:0px; margin-left:8%"><FONT FACE="Times New Roman" SIZE="2">(1) &#147;CMS&#148;
means the U.S. Centers for Medicare and Medicaid Services (formerly known as the Health Care Financing Administration). </FONT></P> <P STYLE="margin-top:0px;margin-bottom:-6px"><FONT SIZE="1">&nbsp;</FONT></P> <P
STYLE="margin-top:0px;margin-bottom:0px; margin-left:8%"><FONT FACE="Times New Roman" SIZE="2">(2) &#147;Health Plans&#148; shall mean those plans, which have entered into a Medicare+Choice Contract with CMS. </FONT></P> <P
STYLE="margin-top:0px;margin-bottom:-6px"><FONT SIZE="1">&nbsp;</FONT></P> <P STYLE="margin-top:0px;margin-bottom:0px; margin-left:8%"><FONT FACE="Times New Roman" SIZE="2">(3) &#147;Medicare+Choice Contracts&#148; means the agreements entered into
between CMS and Health Plans pursuant to which Health Plans provide health care coverage to Medicare Covered Persons. </FONT></P> <P STYLE="margin-top:0px;margin-bottom:-6px"><FONT SIZE="1">&nbsp;</FONT></P> <P
STYLE="margin-top:0px;margin-bottom:0px; margin-left:8%"><FONT FACE="Times New Roman" SIZE="2">(4) &#147;Medicare+Choice Regulations&#148; means those regulations promulgated by CMS at 42 C.F.R. &#167; 422.100 <I>et. seq</I>., as amended.
</FONT></P> <P STYLE="margin-top:0px;margin-bottom:-6px"><FONT SIZE="1">&nbsp;</FONT></P> <P STYLE="margin-top:0px;margin-bottom:0px; margin-left:8%"><FONT FACE="Times New Roman" SIZE="2">(5) &#147;Medicare Covered Beneficiaries&#148; means an
individual who is entitled to receive benefits pursuant to Title XVIII of the Social Security Act and is enrolled in Health Plan pursuant to the Medicare Contract. The term &#147;Covered Persons,&#148; &#147;Members&#148; or &#147;Enrollees&#148; in
the Agreement shall refer to Medicare Covered Persons unless the context clearly indicates otherwise. </FONT></P> <P STYLE="margin-top:0px;margin-bottom:-6px"><FONT SIZE="1">&nbsp;</FONT></P> <P
STYLE="margin-top:0px;margin-bottom:0px; margin-left:4%"><FONT FACE="Times New Roman" SIZE="2">(c) <U>Compliance Requirements</U>: Notwithstanding any other provisions in this Agreement, the following terms and conditions apply to laboratory
services rendered under this Agreement. </FONT></P> <P STYLE="margin-top:0px;margin-bottom:-6px"><FONT SIZE="1">&nbsp;</FONT></P> <P STYLE="margin-top:0px;margin-bottom:0px; margin-left:8%"><FONT FACE="Times New Roman" SIZE="2">(1) Quest Diagnostics
delegates to Contractor its responsibility under its Medicare+Choice Contracts with Health Plans to provide the services set forth in the Agreement to Medicare Covered Persons. Quest Diagnostics or Healthplan may revoke this delegation, and thereby
terminate the Agreement if Quest Diagnostics or Health Plan reasonably determines that Contractor has not performed satisfactorily. Such revocation shall be consistent with the termination provisions of the Agreement. Performance of Contractor shall
be monitored by Quest Diagnostics and Health Plan on an ongoing basis. Contractor acknowledges that Health Plan shall oversee and is accountable to CMS for the functions and responsibilities described in the Medicare+Choice Program regulatory
standards. </FONT></P> <P STYLE="margin-top:0px;margin-bottom:-6px"><FONT SIZE="1">&nbsp;</FONT></P> <P STYLE="margin-top:0px;margin-bottom:0px; margin-left:8%"><FONT FACE="Times New Roman" SIZE="2">(2) Contractor agrees to comply, and to require
any of its permitted subcontractors to comply, with all Medicare laws, the Medicare + Regulations and CMS instructions submitted. Further, Contractor agrees that any services provided by the Contractor or its subcontractors to Medicare Covered
Persons, to the extent required by applicable laws and regulations, will be consistent with and will comply with Health Plan&#146;s Medicare+Choice contractual obligations. </FONT></P> <P STYLE="margin-top:0px;margin-bottom:-6px"><FONT
SIZE="1">&nbsp;</FONT></P> <P STYLE="margin-top:0px;margin-bottom:0px; margin-left:8%"><FONT FACE="Times New Roman" SIZE="2">(3) Contractor agrees to maintain records, documents and any other information relating to Covered Persons and this
Agreement for six (6) years or such longer period as required by law. Contractor acknowledges that Health and Human Services, the Comptroller General, or their designees have the right to audit, evaluate, or inspect any books, contracts, medical
records, patient care documentation, and other records of Contractor, or its subcontractors or transferees involving transactions related to Quest Diagnostics&#146; Medicare+Choice contracts with Health Plans through 6 years from the final date of
the contract period or from the date of </FONT></P> <P STYLE="margin-top:0px;margin-bottom:0px"><FONT SIZE="1">&nbsp;</FONT></P> <P STYLE="margin-top:0px;margin-bottom:0px"><FONT FACE="Times New Roman" SIZE="2">[*] = C<SMALL>ERTAIN</SMALL>
<SMALL>CONFIDENTIAL</SMALL> <SMALL>INFORMATION</SMALL> <SMALL>CONTAINED</SMALL> <SMALL>IN</SMALL> <SMALL>THIS</SMALL> <SMALL>DOCUMENT</SMALL>, <SMALL>MARKED</SMALL> <SMALL>BY</SMALL> <SMALL>BRACKETS</SMALL>, <SMALL>HAS</SMALL> <SMALL>BEEN</SMALL>
<SMALL>OMITTED</SMALL> <SMALL>AND</SMALL> <SMALL>FILED</SMALL> <SMALL>SEPARATELY</SMALL> <SMALL>WITH</SMALL> <SMALL>THE</SMALL> S<SMALL>ECURITIES</SMALL> <SMALL>AND</SMALL> E<SMALL>XCHANGE</SMALL> C<SMALL>OMMISSION</SMALL> <SMALL>PURSUANT</SMALL>
<SMALL>TO</SMALL> R<SMALL>ULE</SMALL> 24<SMALL>B</SMALL>-2 <SMALL>OF</SMALL> <SMALL>THE</SMALL> S<SMALL>ECURITIES</SMALL> E<SMALL>XCHANGE</SMALL> A<SMALL>CT</SMALL> <SMALL>OF</SMALL> 1934, <SMALL>AS</SMALL> <SMALL>AMENDED</SMALL>. </FONT></P> <P
STYLE="margin-top:0px;margin-bottom:0px"><FONT SIZE="1">&nbsp;</FONT></P>
 <P STYLE="margin-top:0px;margin-bottom:0px" ALIGN="center"><FONT FACE="Times New Roman" SIZE="2">11 </FONT></P>


<p Style='page-break-before:always'>
<HR  SIZE="3" COLOR="#999999" WIDTH="100%" ALIGN="CENTER">

 <P STYLE="margin-top:0px;margin-bottom:0px; margin-left:8%"><FONT FACE="Times New Roman" SIZE="2">the completion of any audit, or for such longer period provided for in 42 CFR 422.502(e)(4) or other
applicable law, whichever is later. Contractor agrees to make available its premises, physical facilities and equipment, records elating to its Medicare members and any additional relevant information. </FONT></P> <P
STYLE="margin-top:0px;margin-bottom:-6px"><FONT SIZE="1">&nbsp;</FONT></P> <P STYLE="margin-top:0px;margin-bottom:0px; margin-left:8%"><FONT FACE="Times New Roman" SIZE="2">(4) Contractor agrees to maintain records and other information with respect
to Medicare Covered Persons in an accurate and timely manner; to ensure timely access by Medicare Covered Persons to the records and information that pertain to them; and to safeguard the privacy of any information that identifies a particular
Medicare Covered Person in accordance with applicable laws and regulations and Medicare+Choice requirements. Contractor agrees to abide by all federal and state laws applicable to Contractor regarding confidentiality and disclosure for mental health
records, medical records, other health information, and patient information. </FONT></P> <P STYLE="margin-top:0px;margin-bottom:-6px"><FONT SIZE="1">&nbsp;</FONT></P> <P STYLE="margin-top:0px;margin-bottom:0px; margin-left:8%"><FONT
FACE="Times New Roman" SIZE="2">(5) Contractor agrees to provide services in a manner consistent with professionally recognized standards of health care. Contractor agrees to provide services in a culturally competent manner to all enrollees.
Contractor shall be paid for the services provided under this Agreement in the manner and at the rates contemplated by the Agreement. Contractor may obtain additional information by requesting same from Quest Diagnostics. The period for payment of
fees by Quest Diagnostics is set forth in the Agreement. </FONT></P> <P STYLE="margin-top:0px;margin-bottom:-6px"><FONT SIZE="1">&nbsp;</FONT></P> <P STYLE="margin-top:0px;margin-bottom:0px; margin-left:8%"><FONT FACE="Times New Roman" SIZE="2">(6)
Contractor agrees to comply and cooperate with an independent quality review and improvement activities pertaining to the provision of services for Medicare Covered Persons. Contractor agrees to comply with Quest Diagnostics&#146; and/or Health
Plan&#146;s medical policies, quality assurance and performance improvement programs, and medical management programs. Contractor agrees to comply with all applicable Health Plan credentialing requirements. Contractor also agrees that the
credentialing process will be reviewed by Health Plan and/or Quest Diagnostics and Health Plan and/or Quest Diagnostics will audit the process on an ongoing basis. </FONT></P> <P STYLE="margin-top:0px;margin-bottom:-6px"><FONT
SIZE="1">&nbsp;</FONT></P> <P STYLE="margin-top:0px;margin-bottom:0px; margin-left:8%"><FONT FACE="Times New Roman" SIZE="2">(7) Contractor agrees that in no event, including but not limited to nonpayment by Quest Diagnostics or Health Plan,
insolvency of Quest Diagnostics or Health Plan or breach of the Agreement, shall the Contractor bill, charge, collect a deposit from, seek compensation, remuneration or reimbursement from, or have any recourse against a Medicare Beneficiary or
persons or person acting on behalf of Medicare Beneficiary for services provided pursuant to the Agreement. Contractor agrees that in the event of Quest Diagnostics&#146; or Health Plan&#146;s insolvency or other cessation of operations, services to
Medicare Covered Persons will continue through the period CMS premiums have been paid to Health Plan. Contractor further agrees that (i) the Hold Harmless and Continuation of Benefits provisions shall survive the termination of the Agreement
regardless of the cause giving rise to the termination and shall be construed to be for the benefit of the Medicare Covered Person, and that (ii) these provisions supersede any oral or written contrary agreement now existing or hereafter entered
into between Contractor and a Medicare Covered Person or persons acting on their behalf that relates to liability for payment for, or continuation of, services provided under the terms and conditions of these clauses. </FONT></P> <P
STYLE="margin-top:0px;margin-bottom:-6px"><FONT SIZE="1">&nbsp;</FONT></P> <P STYLE="margin-top:0px;margin-bottom:0px; margin-left:8%"><FONT FACE="Times New Roman" SIZE="2">(8) Contractor acknowledges that the Agreement shall be terminated if
Contractor, or a person with an ownership or control interest in Contractor, is excluded from participation in Medicare under Section 1128 or 1128A of the Social Security Act or from participation in any other federal health care program. Neither
Contractor nor Quest Diagnostics may employ or subcontract with an individual, or with an entity that employs or contracts with an individual, who is excluded from participation in Medicare under Section 1128 or 1128A of the Social Security Act or
from participation in a federal health care program. </FONT></P> <P STYLE="margin-top:0px;margin-bottom:0px"><FONT SIZE="1">&nbsp;</FONT></P> <P STYLE="margin-top:0px;margin-bottom:0px"><FONT FACE="Times New Roman" SIZE="2">[*] =
C<SMALL>ERTAIN</SMALL> <SMALL>CONFIDENTIAL</SMALL> <SMALL>INFORMATION</SMALL> <SMALL>CONTAINED</SMALL> <SMALL>IN</SMALL> <SMALL>THIS</SMALL> <SMALL>DOCUMENT</SMALL>, <SMALL>MARKED</SMALL> <SMALL>BY</SMALL> <SMALL>BRACKETS</SMALL>, <SMALL>HAS</SMALL>
<SMALL>BEEN</SMALL> <SMALL>OMITTED</SMALL> <SMALL>AND</SMALL> <SMALL>FILED</SMALL> <SMALL>SEPARATELY</SMALL> <SMALL>WITH</SMALL> <SMALL>THE</SMALL> S<SMALL>ECURITIES</SMALL> <SMALL>AND</SMALL> E<SMALL>XCHANGE</SMALL> C<SMALL>OMMISSION</SMALL>
<SMALL>PURSUANT</SMALL> <SMALL>TO</SMALL> R<SMALL>ULE</SMALL> 24<SMALL>B</SMALL>-2 <SMALL>OF</SMALL> <SMALL>THE</SMALL> S<SMALL>ECURITIES</SMALL> E<SMALL>XCHANGE</SMALL> A<SMALL>CT</SMALL> <SMALL>OF</SMALL> 1934, <SMALL>AS</SMALL>
<SMALL>AMENDED</SMALL>. </FONT></P> <P STYLE="margin-top:0px;margin-bottom:0px"><FONT SIZE="1">&nbsp;</FONT></P>
 <P STYLE="margin-top:0px;margin-bottom:0px" ALIGN="center"><FONT FACE="Times New Roman" SIZE="2">12 </FONT></P>


<p Style='page-break-before:always'>
<HR  SIZE="3" COLOR="#999999" WIDTH="100%" ALIGN="CENTER">

 <P STYLE="margin-top:0px;margin-bottom:0px; margin-left:8%"><FONT FACE="Times New Roman" SIZE="2">(9) Contractor acknowledges that payments Contractor receives from Quest Diagnostics to provide Covered
Services to Medicare Covered Persons are, in whole or part, from federal funds. Contractor and any of its subcontractors are subject to certain laws that are applicable to individuals and entities receiving federal funds, including but not limited
to, Title VI of the Civil Rights Act of 1964 as implemented by 45 CFR Part 84; The Age Discrimination Act of 1975 as implemented by 45 CFR Part 91; the Rehabilitation Act of 1973; and the Americans With Disabilities Act. Contractor shall not deny,
limit or condition the furnishing of health care Covered Services to Medicare + Choice Beneficiaries on the basis of any factor that is related to health status or source of payment. </FONT></P> <P STYLE="margin-top:0px;margin-bottom:0px"><FONT
SIZE="1">&nbsp;</FONT></P> <P STYLE="margin-top:0px;margin-bottom:0px"><FONT FACE="Times New Roman" SIZE="2"><B>IN WITNESS WHEREOF</B>, the duly authorized representatives of the parties have executed this Agreement effective as of the Effective
Date. </FONT></P> <P STYLE="margin-top:0px;margin-bottom:0px"><FONT SIZE="1">&nbsp;</FONT></P>
<TABLE CELLSPACING="0" CELLPADDING="0" WIDTH="100%" BORDER="0">

<TR>
<TD WIDTH="3%"></TD>
<TD VALIGN="bottom" WIDTH="2%"></TD>
<TD WIDTH="43%"></TD>
<TD VALIGN="bottom" WIDTH="2%"></TD>
<TD WIDTH="5%"></TD>
<TD VALIGN="bottom" WIDTH="2%"></TD>
<TD WIDTH="43%"></TD></TR>
<TR>
<TD VALIGN="top" COLSPAN="3"><FONT FACE="Times New Roman" SIZE="2"><B>CONTRACTOR</B></FONT></TD>
<TD VALIGN="bottom"><FONT SIZE="1">&nbsp;</FONT></TD>
<TD VALIGN="bottom" COLSPAN="3"><FONT FACE="Times New Roman" SIZE="2"><B>QUEST DIAGNOSTICS INCORPORATED</B></FONT></TD></TR>
<TR>
<TD HEIGHT="16"></TD>
<TD HEIGHT="16" COLSPAN="2"></TD>
<TD HEIGHT="16" COLSPAN="2"></TD>
<TD HEIGHT="16" COLSPAN="2"></TD></TR>
<TR>
<TD VALIGN="top"><FONT FACE="Times New Roman" SIZE="2">By:</FONT></TD>
<TD VALIGN="bottom"><FONT SIZE="1">&nbsp;</FONT></TD>
<TD VALIGN="bottom"> <P STYLE="margin-top:0px;margin-bottom:0px"><FONT FACE="Times New Roman" SIZE="2">/s/ William D. Young</FONT></P><HR SIZE="1" NOSHADE COLOR="#000000"></TD>
<TD VALIGN="bottom"><FONT SIZE="1">&nbsp;</FONT></TD>
<TD VALIGN="top"><FONT FACE="Times New Roman" SIZE="2">By:</FONT></TD>
<TD VALIGN="bottom"><FONT SIZE="1">&nbsp;</FONT></TD>
<TD VALIGN="bottom"> <P STYLE="margin-top:0px;margin-bottom:0px"><FONT FACE="Times New Roman" SIZE="2">/s/ David M. Zewe</FONT></P><HR SIZE="1" NOSHADE COLOR="#000000"></TD></TR>
<TR>
<TD VALIGN="top"><FONT SIZE="1">&nbsp;</FONT></TD>
<TD VALIGN="bottom"><FONT SIZE="1">&nbsp;</FONT></TD>
<TD VALIGN="bottom"><FONT FACE="Times New Roman" SIZE="2">(Signature)</FONT></TD>
<TD VALIGN="bottom"><FONT SIZE="1">&nbsp;</FONT></TD>
<TD VALIGN="bottom"><FONT SIZE="1">&nbsp;</FONT></TD>
<TD VALIGN="bottom"><FONT SIZE="1">&nbsp;</FONT></TD>
<TD VALIGN="bottom"><FONT FACE="Times New Roman" SIZE="2">(Signature)</FONT></TD></TR>
<TR>
<TD HEIGHT="16"></TD>
<TD HEIGHT="16" COLSPAN="2"></TD>
<TD HEIGHT="16" COLSPAN="2"></TD>
<TD HEIGHT="16" COLSPAN="2"></TD></TR>
<TR>
<TD VALIGN="top"><FONT SIZE="1">&nbsp;</FONT></TD>
<TD VALIGN="bottom"><FONT SIZE="1">&nbsp;</FONT></TD>
<TD VALIGN="bottom"> <P STYLE="margin-top:0px;margin-bottom:0px"><FONT FACE="Times New Roman" SIZE="2">William D. Young</FONT></P><HR SIZE="1" NOSHADE COLOR="#000000"></TD>
<TD VALIGN="bottom"><FONT SIZE="1">&nbsp;</FONT></TD>
<TD VALIGN="bottom"><FONT SIZE="1">&nbsp;</FONT></TD>
<TD VALIGN="bottom"><FONT SIZE="1">&nbsp;</FONT></TD>
<TD VALIGN="bottom"> <P STYLE="margin-top:0px;margin-bottom:0px"><FONT FACE="Times New Roman" SIZE="2">David M. Zewe</FONT></P><HR SIZE="1" NOSHADE COLOR="#000000"></TD></TR>
<TR>
<TD VALIGN="top"><FONT SIZE="1">&nbsp;</FONT></TD>
<TD VALIGN="bottom"><FONT SIZE="1">&nbsp;</FONT></TD>
<TD VALIGN="bottom"><FONT FACE="Times New Roman" SIZE="2">(Print Name)</FONT></TD>
<TD VALIGN="bottom"><FONT SIZE="1">&nbsp;</FONT></TD>
<TD VALIGN="bottom"><FONT SIZE="1">&nbsp;</FONT></TD>
<TD VALIGN="bottom"><FONT SIZE="1">&nbsp;</FONT></TD>
<TD VALIGN="bottom"><FONT FACE="Times New Roman" SIZE="2">(Print Name)</FONT></TD></TR>
<TR>
<TD HEIGHT="16"></TD>
<TD HEIGHT="16" COLSPAN="2"></TD>
<TD HEIGHT="16" COLSPAN="2"></TD>
<TD HEIGHT="16" COLSPAN="2"></TD></TR>
<TR>
<TD VALIGN="top"><FONT SIZE="1">&nbsp;</FONT></TD>
<TD VALIGN="bottom"><FONT SIZE="1">&nbsp;</FONT></TD>
<TD VALIGN="bottom"> <P STYLE="margin-top:0px;margin-bottom:0px"><FONT FACE="Times New Roman" SIZE="2">Chairman and CEO</FONT></P><HR SIZE="1" NOSHADE COLOR="#000000"></TD>
<TD VALIGN="bottom"><FONT SIZE="1">&nbsp;</FONT></TD>
<TD VALIGN="bottom"><FONT SIZE="1">&nbsp;</FONT></TD>
<TD VALIGN="bottom"><FONT SIZE="1">&nbsp;</FONT></TD>
<TD VALIGN="bottom"> <P STYLE="margin-top:0px;margin-bottom:0px"><FONT FACE="Times New Roman" SIZE="2">Senior VP Operations</FONT></P><HR SIZE="1" NOSHADE COLOR="#000000"></TD></TR>
<TR>
<TD VALIGN="top"><FONT SIZE="1">&nbsp;</FONT></TD>
<TD VALIGN="bottom"><FONT SIZE="1">&nbsp;</FONT></TD>
<TD VALIGN="bottom"><FONT FACE="Times New Roman" SIZE="2">(Title)</FONT></TD>
<TD VALIGN="bottom"><FONT SIZE="1">&nbsp;</FONT></TD>
<TD VALIGN="bottom"><FONT SIZE="1">&nbsp;</FONT></TD>
<TD VALIGN="bottom"><FONT SIZE="1">&nbsp;</FONT></TD>
<TD VALIGN="bottom"><FONT FACE="Times New Roman" SIZE="2">(Title)</FONT></TD></TR>
<TR>
<TD HEIGHT="16"></TD>
<TD HEIGHT="16" COLSPAN="2"></TD>
<TD HEIGHT="16" COLSPAN="2"></TD>
<TD HEIGHT="16" COLSPAN="2"></TD></TR>
<TR>
<TD VALIGN="top"><FONT SIZE="1">&nbsp;</FONT></TD>
<TD VALIGN="bottom"><FONT SIZE="1">&nbsp;</FONT></TD>
<TD VALIGN="bottom"> <P STYLE="margin-top:0px;margin-bottom:0px"><FONT FACE="Times New Roman" SIZE="2">April 29, 2004</FONT></P><HR SIZE="1" NOSHADE COLOR="#000000"></TD>
<TD VALIGN="bottom"><FONT SIZE="1">&nbsp;</FONT></TD>
<TD VALIGN="bottom"><FONT SIZE="1">&nbsp;</FONT></TD>
<TD VALIGN="bottom"><FONT SIZE="1">&nbsp;</FONT></TD>
<TD VALIGN="bottom"> <P STYLE="margin-top:0px;margin-bottom:0px"><FONT FACE="Times New Roman" SIZE="2">April 29, 2004</FONT></P><HR SIZE="1" NOSHADE COLOR="#000000"></TD></TR>
<TR>
<TD VALIGN="top"><FONT SIZE="1">&nbsp;</FONT></TD>
<TD VALIGN="bottom"><FONT SIZE="1">&nbsp;</FONT></TD>
<TD VALIGN="bottom"><FONT FACE="Times New Roman" SIZE="2">(Date)</FONT></TD>
<TD VALIGN="bottom"><FONT SIZE="1">&nbsp;</FONT></TD>
<TD VALIGN="bottom"><FONT SIZE="1">&nbsp;</FONT></TD>
<TD VALIGN="bottom"><FONT SIZE="1">&nbsp;</FONT></TD>
<TD VALIGN="bottom"><FONT FACE="Times New Roman" SIZE="2">(Date)</FONT></TD></TR>
</TABLE> <P STYLE="margin-top:0px;margin-bottom:0px"><FONT SIZE="1">&nbsp;</FONT></P> <P STYLE="margin-top:0px;margin-bottom:0px"><FONT FACE="Times New Roman" SIZE="2">[*] = C<SMALL>ERTAIN</SMALL>
<SMALL>CONFIDENTIAL</SMALL> <SMALL>INFORMATION</SMALL> <SMALL>CONTAINED</SMALL> <SMALL>IN</SMALL> <SMALL>THIS</SMALL> <SMALL>DOCUMENT</SMALL>, <SMALL>MARKED</SMALL> <SMALL>BY</SMALL> <SMALL>BRACKETS</SMALL>, <SMALL>HAS</SMALL> <SMALL>BEEN</SMALL>
<SMALL>OMITTED</SMALL> <SMALL>AND</SMALL> <SMALL>FILED</SMALL> <SMALL>SEPARATELY</SMALL> <SMALL>WITH</SMALL> <SMALL>THE</SMALL> S<SMALL>ECURITIES</SMALL> <SMALL>AND</SMALL> E<SMALL>XCHANGE</SMALL> C<SMALL>OMMISSION</SMALL> <SMALL>PURSUANT</SMALL>
<SMALL>TO</SMALL> R<SMALL>ULE</SMALL> 24<SMALL>B</SMALL>-2 <SMALL>OF</SMALL> <SMALL>THE</SMALL> S<SMALL>ECURITIES</SMALL> E<SMALL>XCHANGE</SMALL> A<SMALL>CT</SMALL> <SMALL>OF</SMALL> 1934, <SMALL>AS</SMALL> <SMALL>AMENDED</SMALL>. </FONT></P> <P
STYLE="margin-top:0px;margin-bottom:0px"><FONT SIZE="1">&nbsp;</FONT></P>
 <P STYLE="margin-top:0px;margin-bottom:0px" ALIGN="center"><FONT FACE="Times New Roman" SIZE="2">13 </FONT></P>


<p Style='page-break-before:always'>
<HR  SIZE="3" COLOR="#999999" WIDTH="100%" ALIGN="CENTER">

 <P STYLE="margin-top:0px;margin-bottom:0px"><FONT FACE="Times New Roman" SIZE="2">EXHIBIT A </FONT></P> <P STYLE="margin-top:0px;margin-bottom:0px"><FONT SIZE="1">&nbsp;</FONT></P> <P
STYLE="margin-top:0px;margin-bottom:0px"><FONT FACE="Times New Roman" SIZE="2">Volume based pricing per 12 month period </FONT></P> <P STYLE="margin-top:0px;margin-bottom:0px"><FONT SIZE="1">&nbsp;</FONT></P>
<TABLE CELLSPACING="0" CELLPADDING="0" WIDTH="40%" BORDER="0">

<TR>
<TD WIDTH="91%"></TD>
<TD VALIGN="bottom" WIDTH="2%"></TD>
<TD WIDTH="7%"></TD></TR>
<TR>
<TD VALIGN="top"> <P STYLE="margin-left:1.00em; text-indent:-1.00em"><FONT FACE="Times New Roman" SIZE="2">Number of PS/PSGT Billable Units</FONT></P></TD>
<TD VALIGN="bottom"><FONT SIZE="1">&nbsp;</FONT></TD>
<TD VALIGN="bottom"><FONT FACE="Times New Roman" SIZE="2">[&nbsp;*&nbsp;]</FONT></TD></TR>
<TR>
<TD HEIGHT="16"></TD>
<TD HEIGHT="16" COLSPAN="2"></TD></TR>
<TR>
<TD VALIGN="top"> <P STYLE="margin-left:1.00em; text-indent:-1.00em"><FONT FACE="Times New Roman" SIZE="2">PS/PSGT Pricing</FONT></P></TD>
<TD VALIGN="bottom"><FONT SIZE="1">&nbsp;</FONT></TD>
<TD VALIGN="bottom"><FONT FACE="Times New Roman" SIZE="2">[ * ]</FONT></TD></TR>
</TABLE> <P STYLE="margin-top:0px;margin-bottom:0px"><FONT SIZE="1">&nbsp;</FONT></P> <P STYLE="margin-top:0px;margin-bottom:0px"><FONT FACE="Times New Roman" SIZE="2">Other Pricing Features </FONT></P> <P
STYLE="margin-top:0px;margin-bottom:-6px"><FONT SIZE="1">&nbsp;</FONT></P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR>
<TD WIDTH="4%"><FONT SIZE="1">&nbsp;</FONT></TD>
<TD WIDTH="3%" VALIGN="top" ALIGN="left"><FONT FACE="Times New Roman" SIZE="2">&#149;</FONT></TD>
<TD ALIGN="left" VALIGN="top"><FONT FACE="Times New Roman" SIZE="2">The parties agree that upon date of issuance of an updated policy guideline from AMA or other favorable coverage decision or action by a payor or group of payors which results in an
increase in the reimbursement rates for Quest Diagnostics for the testing services listed on Exhibit A hereto they will negotiate in good faith to agree to pricing increase to the prices set forth herein be mutually agreed to. Quest Diagnostics will
provide a quarterly report of its reimbursement rates for Contractor&#146;s testing services throughout the term of this Agreement and any extension period. Quest Diagnostics will provide a quarterly report of its reimbursement rates for
Contractor&#146;s testing services throughout the term of this Agreement and any extension period. </FONT></TD></TR></TABLE> <P STYLE="margin-top:0px;margin-bottom:-6px"><FONT SIZE="1">&nbsp;</FONT></P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR>
<TD WIDTH="4%"><FONT SIZE="1">&nbsp;</FONT></TD>
<TD WIDTH="3%" VALIGN="top" ALIGN="left"><FONT FACE="Times New Roman" SIZE="2">&#149;</FONT></TD>
<TD ALIGN="left" VALIGN="top"><FONT FACE="Times New Roman" SIZE="2">Volume pricing in any extension period shall be calculated as follows and shall begin at the lower price level of either: i) the volume discount level of the prior period&#146;s
volume for the total of the 12 month period or ii) a projected annualized volume rate based upon the last three months of the twelve month period immediately preceding the extension. For Example, if in the first twelve month term the total billable
samples is [ * ] which would mean a price level of [ * ], however in months 10, 11 and 12, the monthly volumes were [ * ] respectively, the projected annualized volume for the extension year would be [ * ] therefore a price level of [ * ] would
apply as it is a lower price. During the term of any extension period, the volume discount shall be adjusted on a quarterly basis to the price level of the projected annualized volume rate based upon the actual volume of the prior three months.
</FONT></TD></TR></TABLE> <P STYLE="margin-top:0px;margin-bottom:-6px"><FONT SIZE="1">&nbsp;</FONT></P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR>
<TD WIDTH="4%"><FONT SIZE="1">&nbsp;</FONT></TD>
<TD WIDTH="3%" VALIGN="top" ALIGN="left"><FONT FACE="Times New Roman" SIZE="2">&#149;</FONT></TD>
<TD ALIGN="left" VALIGN="top"><FONT FACE="Times New Roman" SIZE="2">Virologic agrees to provide Quest Diagnostics with 60 days advanced notice of any price tier changes. </FONT></TD></TR></TABLE> <P STYLE="margin-top:0px;margin-bottom:0px"><FONT
SIZE="1">&nbsp;</FONT></P> <P STYLE="margin-top:0px;margin-bottom:0px"><FONT FACE="Times New Roman" SIZE="2">[*] = C<SMALL>ERTAIN</SMALL> <SMALL>CONFIDENTIAL</SMALL> <SMALL>INFORMATION</SMALL> <SMALL>CONTAINED</SMALL> <SMALL>IN</SMALL>
<SMALL>THIS</SMALL> <SMALL>DOCUMENT</SMALL>, <SMALL>MARKED</SMALL> <SMALL>BY</SMALL> <SMALL>BRACKETS</SMALL>, <SMALL>HAS</SMALL> <SMALL>BEEN</SMALL> <SMALL>OMITTED</SMALL> <SMALL>AND</SMALL> <SMALL>FILED</SMALL> <SMALL>SEPARATELY</SMALL>
<SMALL>WITH</SMALL> <SMALL>THE</SMALL> S<SMALL>ECURITIES</SMALL> <SMALL>AND</SMALL> E<SMALL>XCHANGE</SMALL> C<SMALL>OMMISSION</SMALL> <SMALL>PURSUANT</SMALL> <SMALL>TO</SMALL> R<SMALL>ULE</SMALL> 24<SMALL>B</SMALL>-2 <SMALL>OF</SMALL>
<SMALL>THE</SMALL> S<SMALL>ECURITIES</SMALL> E<SMALL>XCHANGE</SMALL> A<SMALL>CT</SMALL> <SMALL>OF</SMALL> 1934, <SMALL>AS</SMALL> <SMALL>AMENDED</SMALL>. </FONT></P> <P STYLE="margin-top:0px;margin-bottom:0px"><FONT SIZE="1">&nbsp;</FONT></P>
 <P STYLE="margin-top:0px;margin-bottom:0px" ALIGN="center"><FONT FACE="Times New Roman" SIZE="2">14 </FONT></P>


<p Style='page-break-before:always'>
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 <P STYLE="margin-top:0px;margin-bottom:0px" ALIGN="center"><FONT FACE="Times New Roman" SIZE="2"><B>EXHIBIT B </B></FONT></P> <P STYLE="margin-top:0px;margin-bottom:0px"><FONT SIZE="1">&nbsp;</FONT></P>
<P STYLE="margin-top:0px;margin-bottom:0px" ALIGN="center"><FONT FACE="Times New Roman" SIZE="2">Turn around time for PhenoSense and PhenoSense GT is fourteen days, from receipt at Contractor&#146;s </FONT></P> <P
STYLE="margin-top:0px;margin-bottom:0px" ALIGN="center"><FONT FACE="Times New Roman" SIZE="2">laboratory to shipment of test results to Quest Diagnostics. </FONT></P> <P STYLE="margin-top:0px;margin-bottom:0px"><FONT SIZE="1">&nbsp;</FONT></P> <P
STYLE="margin-top:0px;margin-bottom:0px"><FONT FACE="Times New Roman" SIZE="2">[*] = C<SMALL>ERTAIN</SMALL> <SMALL>CONFIDENTIAL</SMALL> <SMALL>INFORMATION</SMALL> <SMALL>CONTAINED</SMALL> <SMALL>IN</SMALL> <SMALL>THIS</SMALL>
<SMALL>DOCUMENT</SMALL>, <SMALL>MARKED</SMALL> <SMALL>BY</SMALL> <SMALL>BRACKETS</SMALL>, <SMALL>HAS</SMALL> <SMALL>BEEN</SMALL> <SMALL>OMITTED</SMALL> <SMALL>AND</SMALL> <SMALL>FILED</SMALL> <SMALL>SEPARATELY</SMALL> <SMALL>WITH</SMALL>
<SMALL>THE</SMALL> S<SMALL>ECURITIES</SMALL> <SMALL>AND</SMALL> E<SMALL>XCHANGE</SMALL> C<SMALL>OMMISSION</SMALL> <SMALL>PURSUANT</SMALL> <SMALL>TO</SMALL> R<SMALL>ULE</SMALL> 24<SMALL>B</SMALL>-2 <SMALL>OF</SMALL> <SMALL>THE</SMALL>
S<SMALL>ECURITIES</SMALL> E<SMALL>XCHANGE</SMALL> A<SMALL>CT</SMALL> <SMALL>OF</SMALL> 1934, <SMALL>AS</SMALL> <SMALL>AMENDED</SMALL>. </FONT></P> <P STYLE="margin-top:0px;margin-bottom:0px"><FONT SIZE="1">&nbsp;</FONT></P>
 <P STYLE="margin-top:0px;margin-bottom:0px" ALIGN="center"><FONT FACE="Times New Roman" SIZE="2">15 </FONT></P>


<p Style='page-break-before:always'>
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 <P STYLE="margin-top:0px;margin-bottom:0px" ALIGN="center"><FONT FACE="Times New Roman" SIZE="2"><B>EXHIBIT C </B></FONT></P> <P STYLE="margin-top:0px;margin-bottom:0px"><FONT SIZE="1">&nbsp;</FONT></P>
<P STYLE="margin-top:0px;margin-bottom:0px" ALIGN="center"><FONT FACE="Times New Roman" SIZE="2">STATES WHERE LICENSE, PERMIT OR CERTIFICATION NECESSARY </FONT></P> <P STYLE="margin-top:0px;margin-bottom:0px"><FONT SIZE="1">&nbsp;</FONT></P> <P
STYLE="margin-top:0px;margin-bottom:0px"><FONT FACE="Times New Roman" SIZE="2">In addition to the certification set forth in Section 2(d), Contractor specifically represents that it currently maintains Required Approvals in the states identified in
(1) below, and should Contractor perform tests referred to in (2) or (3) below, in the states referred to in (2) or (3) below for those tests. </FONT></P> <P STYLE="margin-top:0px;margin-bottom:0px"><FONT SIZE="1">&nbsp;</FONT></P> <P
STYLE="margin-top:0px;margin-bottom:0px"><FONT FACE="Times New Roman" SIZE="2">(1) The state in which Contractor is domiciled, together with the States of Pennsylvania, Maryland, Florida, Rhode Island and New York. </FONT></P> <P
STYLE="margin-top:0px;margin-bottom:0px"><FONT SIZE="1">&nbsp;</FONT></P> <P STYLE="margin-top:0px;margin-bottom:0px"><FONT FACE="Times New Roman" SIZE="2">(2) If Contractor performs HIV testing under this Agreement: North Carolina, Mississippi and
West Virginia. </FONT></P> <P STYLE="margin-top:0px;margin-bottom:0px"><FONT SIZE="1">&nbsp;</FONT></P> <P STYLE="margin-top:0px;margin-bottom:0px"><FONT FACE="Times New Roman" SIZE="2">(3) If Contractor performs lead testing under this Agreement:
Ohio </FONT></P> <P STYLE="margin-top:0px;margin-bottom:0px"><FONT SIZE="1">&nbsp;</FONT></P> <P STYLE="margin-top:0px;margin-bottom:0px"><FONT FACE="Times New Roman" SIZE="2">[*] = C<SMALL>ERTAIN</SMALL> <SMALL>CONFIDENTIAL</SMALL>
<SMALL>INFORMATION</SMALL> <SMALL>CONTAINED</SMALL> <SMALL>IN</SMALL> <SMALL>THIS</SMALL> <SMALL>DOCUMENT</SMALL>, <SMALL>MARKED</SMALL> <SMALL>BY</SMALL> <SMALL>BRACKETS</SMALL>, <SMALL>HAS</SMALL> <SMALL>BEEN</SMALL> <SMALL>OMITTED</SMALL>
<SMALL>AND</SMALL> <SMALL>FILED</SMALL> <SMALL>SEPARATELY</SMALL> <SMALL>WITH</SMALL> <SMALL>THE</SMALL> S<SMALL>ECURITIES</SMALL> <SMALL>AND</SMALL> E<SMALL>XCHANGE</SMALL> C<SMALL>OMMISSION</SMALL> <SMALL>PURSUANT</SMALL> <SMALL>TO</SMALL>
R<SMALL>ULE</SMALL> 24<SMALL>B</SMALL>-2 <SMALL>OF</SMALL> <SMALL>THE</SMALL> S<SMALL>ECURITIES</SMALL> E<SMALL>XCHANGE</SMALL> A<SMALL>CT</SMALL> <SMALL>OF</SMALL> 1934, <SMALL>AS</SMALL> <SMALL>AMENDED</SMALL>. </FONT></P> <P
STYLE="margin-top:0px;margin-bottom:0px"><FONT SIZE="1">&nbsp;</FONT></P>
 <P STYLE="margin-top:0px;margin-bottom:0px" ALIGN="center"><FONT FACE="Times New Roman" SIZE="2">16 </FONT></P>


<p Style='page-break-before:always'>
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 <P STYLE="margin-top:0px;margin-bottom:0px" ALIGN="center"><FONT FACE="Times New Roman" SIZE="2"><B>EXHIBIT D </B></FONT></P> <P STYLE="margin-top:0px;margin-bottom:0px"><FONT SIZE="1">&nbsp;</FONT></P>
<P STYLE="margin-top:0px;margin-bottom:0px" ALIGN="center"><FONT FACE="Times New Roman" SIZE="2"><B>Sample Collection and Handling Requirements for: </B></FONT></P> <P STYLE="margin-top:0px;margin-bottom:0px"><FONT SIZE="1">&nbsp;</FONT></P> <P
STYLE="margin-top:0px;margin-bottom:0px" ALIGN="center"><FONT FACE="Times New Roman" SIZE="2"><B>PhenoSense GT<FONT FACE="Times New Roman" SIZE="1" COLOR="#000000"><SUP>&#153;<FONT FACE="Times New Roman" SIZE="2" COLOR="#000000"></FONT></SUP><FONT
FACE="Times New Roman" SIZE="2" COLOR="#000000"></FONT></FONT>and PhenoSense<FONT FACE="Times New Roman" SIZE="1" COLOR="#000000"><SUP>&#153;<FONT FACE="Times New Roman" SIZE="2" COLOR="#000000"></FONT></SUP><FONT FACE="Times New Roman" SIZE="2"
COLOR="#000000"></FONT></FONT> HIV </B></FONT></P> <P STYLE="margin-top:0px;margin-bottom:-6px"><FONT SIZE="1">&nbsp;</FONT></P> <P STYLE="margin-top:0px;margin-bottom:0px" ALIGN="center"><FONT FACE="Times New Roman" SIZE="2"><B>This document
describes the requirements for collection, handling, and shipment of blood </B></FONT></P> <P STYLE="margin-top:0px;margin-bottom:0px" ALIGN="center"><FONT FACE="Times New Roman" SIZE="2"><B>samples prior to testing in the PhenoSense<FONT
FACE="Times New Roman" SIZE="1" COLOR="#000000"><SUP>&#153;<FONT FACE="Times New Roman" SIZE="2" COLOR="#000000"></FONT></SUP><FONT FACE="Times New Roman" SIZE="2" COLOR="#000000"></FONT></FONT> HIV and PhenoSense GT<FONT FACE="Times New Roman"
SIZE="1" COLOR="#000000"><SUP>&#153;<FONT FACE="Times New Roman" SIZE="2" COLOR="#000000"></FONT></SUP><FONT FACE="Times New Roman" SIZE="2" COLOR="#000000"></FONT></FONT> assays. HIV RNA is </B></FONT></P> <P
STYLE="margin-top:0px;margin-bottom:0px" ALIGN="center"><FONT FACE="Times New Roman" SIZE="2"><B>especially vulnerable to degradation, therefore proper collection and handling of blood specimens </B></FONT></P> <P
STYLE="margin-top:0px;margin-bottom:0px" ALIGN="center"><FONT FACE="Times New Roman" SIZE="2"><B>is essential for successful performance of the assays. Samples with lower viral loads are more </B></FONT></P> <P
STYLE="margin-top:0px;margin-bottom:0px" ALIGN="center"><FONT FACE="Times New Roman" SIZE="2"><B>susceptible to degradation than samples with higher viral loads. </B></FONT></P> <P STYLE="margin-top:0px;margin-bottom:0px"><FONT
SIZE="1">&nbsp;</FONT></P> <P STYLE="margin-top:0px;margin-bottom:0px"><FONT FACE="Times New Roman" SIZE="2"><B>Specimen Volume and Identification Requirements: </B></FONT></P> <P STYLE="margin-top:0px;margin-bottom:-6px"><FONT
SIZE="1">&nbsp;</FONT></P> <P STYLE="margin-top:0px;margin-bottom:0px; text-indent:4%"><FONT FACE="Times New Roman" SIZE="2"><B><U>3.0 mL of plasma </U></B>must be sent for optimal performance of the assays. Either sterile PPT (pearl top) or tubes
containing EDTA (lavender top) may be used for sample collection. </FONT></P> <P STYLE="margin-top:0px;margin-bottom:0px"><FONT SIZE="1">&nbsp;</FONT></P> <P STYLE="margin-top:0px;margin-bottom:0px; text-indent:4%"><FONT FACE="Times New Roman"
SIZE="2">Proper identification of specimens is extremely important. Confirm patient identification and print the patient&#146;s first and last name or unique identifier as they appear on the test request form on the tubes in the patient&#146;s
presence. The patient&#146;s name or unique identifier on the specimen <B>must be identical </B>to the patient&#146;s name on the test request form. </FONT></P> <P STYLE="margin-top:0px;margin-bottom:0px"><FONT SIZE="1">&nbsp;</FONT></P> <P
STYLE="margin-top:0px;margin-bottom:0px; text-indent:4%"><FONT FACE="Times New Roman" SIZE="2">Please indicate on the test request form the patient&#146;s most recent viral load with viral load collection date. For best results, viral loads should
be confirmed within the two weeks prior to submission for testing at ViroLogic. <B><I>NOTE: PhenoSense<FONT FACE="Times New Roman" SIZE="1" COLOR="#000000"><SUP>&#153;<FONT FACE="Times New Roman" SIZE="2" COLOR="#000000"></FONT></SUP><FONT
FACE="Times New Roman" SIZE="2" COLOR="#000000"></FONT></FONT> GT, PhenoSense<FONT FACE="Times New Roman" SIZE="1" COLOR="#000000"><SUP>&#153;<FONT FACE="Times New Roman" SIZE="2" COLOR="#000000"></FONT></SUP><FONT FACE="Times New Roman" SIZE="2"
COLOR="#000000"></FONT></FONT> HIV assays are intended for use only for patients with viral loads greater than or equal to 500 copies/mL. </I></B> </FONT></P> <P STYLE="margin-top:0px;margin-bottom:0px"><FONT SIZE="1">&nbsp;</FONT></P> <P
STYLE="margin-top:0px;margin-bottom:0px"><FONT FACE="Times New Roman" SIZE="2"><B>Sample Collection and Processing: </B></FONT></P> <P STYLE="margin-top:0px;margin-bottom:-6px"><FONT SIZE="1">&nbsp;</FONT></P> <P
STYLE="margin-top:0px;margin-bottom:0px; text-indent:4%"><FONT FACE="Times New Roman" SIZE="2">Draw whole blood into either <B>two </B>5.0 mL PPT (pearl top) or tubes containing EDTA anticoagulant (lavender top). </FONT></P> <P
STYLE="margin-top:0px;margin-bottom:0px"><FONT SIZE="1">&nbsp;</FONT></P> <P STYLE="margin-top:0px;margin-bottom:0px; text-indent:4%"><FONT FACE="Times New Roman" SIZE="2">Immediately centrifuge blood (<B><U>within 2 hours of collection</U>) </B>at
1000-1200 x g at room temperature (18 &#150; 25o C) for 10-15 minutes. </FONT></P> <P STYLE="margin-top:0px;margin-bottom:0px"><FONT SIZE="1">&nbsp;</FONT></P> <P STYLE="margin-top:0px;margin-bottom:0px; text-indent:4%"><FONT FACE="Times New Roman"
SIZE="2"><B>Do not allow samples to remain in centrifuge after centrifugation. </B></FONT></P> <P STYLE="margin-top:0px;margin-bottom:-6px"><FONT SIZE="1">&nbsp;</FONT></P> <P STYLE="margin-top:0px;margin-bottom:0px; text-indent:4%"><FONT
FACE="Times New Roman" SIZE="2">For <B>EDTA </B>samples: after centrifugation, <B>immediately remove plasma </B>from cells and transfer to a screw cap top tube. </FONT></P> <P STYLE="margin-top:0px;margin-bottom:0px"><FONT SIZE="1">&nbsp;</FONT></P>
<P STYLE="margin-top:0px;margin-bottom:0px; text-indent:4%"><FONT FACE="Times New Roman" SIZE="2"><B>Immediately after centrifugation, freeze plasma sample at or below - 20o C in a standard laboratory freezer. Sample should be frozen when courier
arrives to pick it up. </B></FONT></P> <P STYLE="margin-top:0px;margin-bottom:-6px"><FONT SIZE="1">&nbsp;</FONT></P> <P STYLE="margin-top:0px;margin-bottom:0px; text-indent:4%"><FONT FACE="Times New Roman" SIZE="2"><B>DO NOT THAW SAMPLE AFTER
FREEZING! </B></FONT></P> <P STYLE="margin-top:0px;margin-bottom:0px"><FONT SIZE="1">&nbsp;</FONT></P> <P STYLE="margin-top:0px;margin-bottom:0px"><FONT FACE="Times New Roman" SIZE="2">[*] = C<SMALL>ERTAIN</SMALL> <SMALL>CONFIDENTIAL</SMALL>
<SMALL>INFORMATION</SMALL> <SMALL>CONTAINED</SMALL> <SMALL>IN</SMALL> <SMALL>THIS</SMALL> <SMALL>DOCUMENT</SMALL>, <SMALL>MARKED</SMALL> <SMALL>BY</SMALL> <SMALL>BRACKETS</SMALL>, <SMALL>HAS</SMALL> <SMALL>BEEN</SMALL> <SMALL>OMITTED</SMALL>
<SMALL>AND</SMALL> <SMALL>FILED</SMALL> <SMALL>SEPARATELY</SMALL> <SMALL>WITH</SMALL> <SMALL>THE</SMALL> S<SMALL>ECURITIES</SMALL> <SMALL>AND</SMALL> E<SMALL>XCHANGE</SMALL> C<SMALL>OMMISSION</SMALL> <SMALL>PURSUANT</SMALL> <SMALL>TO</SMALL>
R<SMALL>ULE</SMALL> 24<SMALL>B</SMALL>-2 <SMALL>OF</SMALL> <SMALL>THE</SMALL> S<SMALL>ECURITIES</SMALL> E<SMALL>XCHANGE</SMALL> A<SMALL>CT</SMALL> <SMALL>OF</SMALL> 1934, <SMALL>AS</SMALL> <SMALL>AMENDED</SMALL>. </FONT></P> <P
STYLE="margin-top:0px;margin-bottom:0px"><FONT SIZE="1">&nbsp;</FONT></P>
 <P STYLE="margin-top:0px;margin-bottom:0px" ALIGN="center"><FONT FACE="Times New Roman" SIZE="2">17 </FONT></P>

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