"Activity_Kind"^^ . . "Clinical evaluation of the utility of diagnostic procedures.NCI" . "See 'Diagnostic Trial'"^^ . "C15788"^^ . . "Clinical Trials, DiagnosisPTNCI" . . "Clinical Trials, Diagnosis"^^ . "Retired_Concept"^^ . "Clinical Trials, Diagnosis"^^ . "Health Care Activity"^^ .