Where used:

Attribute	CANCER CLINICAL TRIAL IDENTIFIER	has attribute CANCER CLINICAL TRIAL
Attribute	CANCER CLINICAL TRIAL TREATMENT TYPE	references in description CANCER CLINICAL TRIAL
Attribute	PATIENT TRIAL STATUS	references in description CANCER CLINICAL TRIAL
Class	PATIENT CLINICAL TRIAL STATUS	references in description CANCER CLINICAL TRIAL
Diagram	NCD2	displays CANCER CLINICAL TRIAL