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positive.code:     <td> <i>D. melanogaster</i> </td>
      <td> Regulatory elements</td>
      <td> <a href="http://www.flybase.org">Flybase</a></td>
      <td> Crosby et al - <a href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&dopt=Abstract&list_uids=17099233 ">PubMed: 17099233</a></td> 
      <td> &nbsp;</td>
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negative.code:     <td> <i>D. melanogaster</i></td>
      <td> Pathway information and the genes involved in them</td>
      <td> <a href="http://www.genome.jp/kegg/">KEGG</a> - Release 41</td>
      <td> Kanehisa et al - <a href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&dopt=Abstract&list_uids=16381885">PubMed: 16381885</a></td>
      <td> &nbsp;</td>
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