anchor.diff:              ],
               "aoColumns": [
                   null,
  +                { "sWidth": "20%" },
  +                { "sWidth": "20%" },
  +                { "sWidth": "20%" },
                   { "sWidth": "30%" },
  -                { "sWidth": "25%" },
  -                { "sWidth": "30%" },
  -                { "sWidth": "15%" }
  +                { "sWidth": "10%" }
               ],
               "fnInitComplete": function () {
                   this.fnAdjustColumnSizing(true);
  
positive.code:                   %>
                    <tr class="gradeX">
                      <td><%= specimen_info %> </td>
                      <td><%= sample.lab_internal_number %> </td>
                      <td><%= sampling_date %> </td>
                      <td><%= provider_name %></td>
  
negative.code:               <thead>
                <tr>
                  <th>Specimen</th>
                  <th>Title</th>
                  <th>Lab internal identifier</th>
                  <th>Sampling date</th>
                  <th>Provider name</th>
  