        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">string&#160;</td>
          <td class="paramname"><em>id</em> = <code>&quot;&quot;</code>&#160;</td>
        </tr>
        <tr>
          <td></td>
          <td>)</td>
          <td></td><td></td>
        </tr>
      </table>
</div><div class="memdoc">

<p>Retrieve additional comments omitted from a base comment tree. When a comment tree is rendered, the most relevant comments are selected fo