ICU stay.</td>
  </tr>
 <tr class='tbl' valign='top'>  <td class='detail'><a href='tables/callout.html'>callout</a></td>
  <td class='detail' align='right'></td>
  <td class='detail' align='right'>2</td>
  <td class='detail' align='right'>24</td>
  <td class='detail' align='right'>0</td>
  <td class='comment detail'>Record of when patients were ready for discharge (called out), and the actual time of their discharge (or more generally, their outcome).</td>
  </tr>
 <tr class='tbl' valign='top'>  <td class='