<n0:ComplexDefinition xmlns:n0="http://ncicb.nci.nih.gov/xml/owl/EVS/ComplexProperties.xsd#"><n0:def-definition>A role used to establish the relationship between a therapeutic agent and an abnormal cell type associated with a disease condition. By pointing to abnormal cells, the therapeutic target of a drug can be more clearly conveyed. The domain and range for this role are 'Drug, Food, Chemical or Biomedical Material' and 'Abnormal Cell', respectively.</n0:def-definition><n0:def-source>NCI</n0:def-source></n0:ComplexDefinition>