"/>
     &lt;enumeration value="ClinicalTrials.gov Identifier"/>
     &lt;enumeration value="Grid Identifier"/>
     &lt;enumeration value="C3D Identifier"/>
     &lt;enumeration value="Protocol Authority Identifier"/>
     &lt;enumeration value="Coordinating Center Identifier"/>
   &lt;/restriction>
 &lt;/simpleType>
 </pre>
<P>

<P>
<HR>

<P>
<!-- =========== ENUM CONSTANT SUMMARY =========== -->

<A NAME="enum_constant_summary"><!-- --></A>
<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPA