title: The aging gonad.
authors.affiliation: The Population Council, One Dag Hammarskjold Plaza, New York, NY 10017, USA. ssegal@popcouncil.org
authors.forename: Sheldon J
authors.initials: SJ
authors.lastname: Segal
mesh_terms: D000375:Aging / Q000502:physiology*; D006801:Humans; D008297:Male; D013737:Testis / Q000187:drug effects / Q000502:physiology*; D045165:Testosterone Congeners / Q000009:adverse effects / Q000494:pharmacology
chemical_list: D045165:Testosterone Congeners