<n0:ComplexDefinition xmlns:n0="http://ncicb.nci.nih.gov/xml/owl/EVS/ComplexProperties.xsd#"><n0:def-definition>Beginning of a step, action, or phase of a procedure.</n0:def-definition><n0:def-source>DICOM</n0:def-source></n0:ComplexDefinition>
<n0:ComplexDefinition xmlns:n0="http://ncicb.nci.nih.gov/xml/owl/EVS/ComplexProperties.xsd#"><n0:def-definition>Indicates the beginning action of a procedure.</n0:def-definition><n0:def-source>NCI</n0:def-source></n0:ComplexDefinition>