anchor.diff:            </tr>
           </thead>
           <tbody>
  -          <%@snp.pgp_annotation.each do |p|%>
  +          <%@snp.pgp_annotation.limit(100).each do |p|%>
               <tr>
                 <td><%=p.gene%></td>
                 <td><%=p.qualified_impact%></td>
  
positive.code:           </tr>
          </thead>
          <tbody>
            <% @snp.mendeley_paper.each do |p|%>
              <tr>
                <td><%=p.first_author%></td>
                <td><%=link_to( p.title, p.mendeley_url)%></td>
  
negative.code:           </tr>
          </thead>
          <tbody>
            <% @snp.plos_paper.limit(100).each do |p|%>
              <tr>
                <td><%=p.first_author%></td> 
                <td><%=link_to(p.title.html_safe, "http://dx.doi.org/"+p.doi)%></td>
  