omments' class='comment'><span class='notSortedByColumn'>Comments</span></th>
</tr>
</thead>
<tbody valign='top'>
<tr class='even'>
 <td class='primaryKey' title='Primary Key'>drug_concept_id</td>
 <td class='detail'>int4</td>
 <td class='detail' align='right'>10</td>
 <td class='detail' align='center'></td>
 <td class='detail' align='center'></td>
 <td class='detail'></td>
 <td class='detail'></td>
 <td class='detail'>
  <table border='0' width='100%' cellspacing='0' cellpadding='0'>
   <tr class='relative