<n0:ComplexDefinition xmlns:n0="http://ncicb.nci.nih.gov/xml/owl/EVS/ComplexProperties.xsd#"><n0:def-definition>Change in the body's immune system, caused by agents that activate or suppress its function.</n0:def-definition><n0:def-source>NCI-GLOSS</n0:def-source></n0:ComplexDefinition>
<n0:ComplexDefinition xmlns:n0="http://ncicb.nci.nih.gov/xml/owl/EVS/ComplexProperties.xsd#"><n0:def-definition>Physiologic control of immune function. Includes all levels of regulation from gene expression mechanisms, through cell-cell interactions, to organism-wide responses.</n0:def-definition><n0:def-source>NCI</n0:def-source></n0:ComplexDefinition>