td>
        <td><p>Estimate volume inside an endotracheal tube</p></td>
      </tr><tr>
        
        <td>
          <p><code><a href="french_to_diameter_mm.html">french_to_diameter_mm()</a></code> <code><a href="french_to_diameter_mm.html">diameter_mm_to_french()</a></code> </p>
        </td>
        <td><p>French to diameter</p></td>
      </tr><tr>
        
        <td>
          <p><code><a href="henderson_hasselbalch.html">henderson_hasselbalch()</a></code> </p>
        </td>
        <td><p>pH by He