Vermeulen, A Diagnosis of hypogonadism in the aging male. [electronic resource] - The aging male : the official journal of the International Society for the Study of the Aging Male Sep 2002 - 170-6 p. digital Publication Type: Journal Article ISSN: 1368-5538 Subjects--Topical Terms: AdultAgedAging--pathologyBiological AvailabilityHumansHypogonadism--diagnosisMaleMiddle AgedTestosterone--blood