le border='0' width='100%' cellspacing='0' cellpadding='0'>
   <tr class='relative odd' valign='top'>
    <td class='relatedTable detail' title="drug_exposure.person_id refs person.person_id via fpk_drug_person"><a href='person.html'>person</a><span class='relatedKey'>.person_id</span>
    </td>
    <td class='constraint detail'>fpk_drug_person<span title='Restrict delete:
 Parent cannot be deleted if children exist'>&nbsp;R</span></td>
   </tr>
  </table>
 </td>
 <td class='comment detail'>A foreign key id