 <td class='detail'> </td>
 <td class='comment detail'>Primary key. Identifies the patient.</td>
</tr>
<tr class='odd'>
 <td class='detail'>gender</td>
 <td class='detail'>varchar</td>
 <td class='detail' align='right'>5</td>
 <td class='detail' align='center'></td>
 <td class='detail' align='center'></td>
 <td class='detail'></td>
 <td class='detail'></td>
 <td class='detail'> </td>
 <td class='comment detail'>Gender.</td>
</tr>
<tr class='even'>
 <td class='detail'>dob</td>
 <td class='detail'>timestamp</