anchor.diff:    <tr>
       <td> <i>C. elegans</i></td>
       <td> Gene versus publications</td>
  -    <td> <a href="http://www.ncbi.nlm.nih.gov" target="_new">NCBI</a> -27th May 2008</td>
  +    <td> <a href="http://www.ncbi.nlm.nih.gov" target="_new">NCBI</a> - 3rd July 2008</td>
       <td> &nbsp;</td>
       <td> &nbsp;</td>
     </tr>
  
positive.code:     <td> Probe sets from the Affymetrix GeneChip Drosophila Genome 2.0 Array</td>
      <td> <a href="http://www.affymetrix.com/" target="_new">Affymetrix</a></td>
      <td> &nbsp;</td>
      <td> &nbsp;</td>   
    </tr>
  
    <tr>
  
negative.code:  <tr>
      <td> <i>C. elegans</i></td>
      <td> Genetic interactions from the BioGRID</td>
      <td> <a href="http://www.thebiogrid.org/" target="_new">BioGRID</a> - Version 2.0.42 </td>
      <td> Stark et al - <a href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&dopt=Abstract&list_uids=16381927" target="_new">PubMed:16381927</a></td>
      <td> &nbsp;</td>
    </tr>
  