anchor.diff:  <hr>
   
   <!-- footer begins -->
  -<table width="100%" border="0" cellspacing="0" cellpadding="0" class="ftrTable">
  +<table width="100%" border="0" cellspacing="0" cellpadding="0" class="ftrTable" summary="layout">
     <tr>
       <td valign="top">
         <div align="center">
  
positive.code: <BODY>
  
  <!-- nci hdr begins -->
  <table width="100%" border="0" cellspacing="0" cellpadding="0" class="hdrBG">
    <tr>
      <td width="283" height="37" align="left">
      <a href="http://www.cancer.gov"><img alt="National Cancer Institute" src="images/logotype.gif" width="283" height="37" border="0"/></a>
  
negative.code:  		</td>
   	<tr>
   	</table>
  	<table align=center summary="layout">
  	<tr>
  		<td> 
  		    Match Terms: 
  