e='nullable'>&nbsp;&radic;&nbsp;</td>
 <td class='detail' align='center'></td>
 <td class='detail' align='right'>null</td>
 <td class='detail'></td>
 <td class='detail'> </td>
 <td class='comment detail'>The source code for the Drug as it appears in the source data. This code is mapped to a Standard Drug concept in the Standardized Vocabularies and the original code is, stored here for reference.</td>
</tr>
<tr class='even'>
 <td class='detail'>drug_source_concept_id</td>
 <td class='detail'>int4</td>
 <td 