<n0:ComplexDefinition xmlns:n0="http://ncicb.nci.nih.gov/xml/owl/EVS/ComplexProperties.xsd#"><n0:def-definition>The innermost layer of endothelial cells and connective tissue that lines the right atrium.</n0:def-definition><n0:def-source>CDISC</n0:def-source></n0:ComplexDefinition>
<n0:ComplexDefinition xmlns:n0="http://ncicb.nci.nih.gov/xml/owl/EVS/ComplexProperties.xsd#"><n0:def-definition>The innermost layer of endothelial cells and connective tissue that lines the right atrium.</n0:def-definition><n0:def-source>NCI</n0:def-source></n0:ComplexDefinition>