        <tr class="summary-item">
            <td class="name">site</td>
            <td class="m-help">link to OptogeneticStimulusSite group that describes the site to which this stimulus was applied&nbsp;</td>
         </tr>
         <tr class="summary-item">
            <td class="name">starting_time</td>
            <td class="m-help">The timestamp of the first sample. COMMENT: When timestamps are uniformly spaced, the timestamp of the first sample can be
               specified and all subsequent ones