anchor.diff:            <A HREF="#conceptdetails">Concept Details</A><br>
             <A HREF="#viewhierarchy">View Hierarchy</A><br>
             <A HREF="#otherlinks">Other Links</A><br>
  -          <A HREF="#subsets">Subsets</A><br>
             <A HREF="#knownissues">Known Issues</A><br>
             <A HREF="#additionalinfo">Additional Information</A>
           </p>
  
positive.code:         </p>
          <p class="textbody">
            This help file provides basic information about how to use 
            the NCI Term Browser effectively as well as links to additional 
            information elsewhere. The following typeface font conventions 
            are used for describing search and the browser interface: 
            
  
negative.code:             terminology sources that are available.  Click on a source 
              name to go to its home page, or click on a source's check 
              box to include it in a search from the NCI Term Browser 
              home page.  Below the sources list are four buttons:
              
              <ul>
                <li><b>Select All</b> includes all sources for searching, leaving their check boxes checked.</li>
                <li><b>All but NCIm</b> includes all sources except NCI Metathesaurus (NCIm), as searches with thousands of hits may be slow when NCIm is included.</li>
                <li><b>Clear</b> unselects all sources, unchecking their check boxes.</li>
                <li><b>Search</b> starts a search in the same way as the Search button in the search box.</li>
              </ul>
  