--subdivision Diagnosis under individual diseases and types of diseases, e.g. Cancer--Diagnosis; also subdivision Diseases--Diagnosis under individual organs and regions of the body, e.g. Heart--Diseases--Diagnosis; also subdivision Diagnostic use under individual chemicals and groups of chemicals used in diagnosing diseases, e.g. Copper--Diagnostic use; and subdivision Medical examinations under topical headings, classes of persons, ethnic groups, and individual military services
