TestosteroneTestosterone PropionateHypogonadismAndrogensOrchiectomyDihydrotestosteroneTestisSex Hormone-Binding GlobulinLuteinizing HormoneEstradiolGonadal Steroid HormonesEpitestosteroneCastrationAndrostenedioneFollicle Stimulating HormoneFlutamideTestosterone CongenersReceptors, AndrogenSexual MaturationDehydroepiandrosterone3-Oxo-5-alpha-Steroid 4-DehydrogenaseGonadotropin-Releasing HormoneHormone Replacement TherapyOrgan SizeDrug ImplantsDehydroepiandrosterone SulfateSpermatogenesisSex CharacteristicsSexual Behavior, AnimalRadioimmunoassayAndrogen AntagonistsChorionic GonadotropinAromataseProstateProgesteroneLibidoHirsutismAndrostanesVirilismGenitalia, MaleCyproteroneSperm CountGonadotropins, PituitarySteroidsSeminal VesiclesHormonesAndrostane-3,17-diol17-Hydroxysteroid DehydrogenasesAndrosteroneCyproterone Acetate17-Ketosteroids5-alpha Reductase Inhibitors17-alpha-HydroxyprogesteroneContraceptive Agents, MaleCholestenone 5 alpha-ReductaseHydroxytestosteronesLeuprolideSertoli CellsSeminiferous TubulesEstrogensGonadotropinsEstroneAdministration, CutaneousNandrolone3-Hydroxysteroid DehydrogenasesPituitary GlandInhibinsSteroid 17-alpha-HydroxylasePolycystic Ovary SyndromeSeasonsProlactinAgingHyperandrogenismFinasterideAnabolic AgentsEpididymisReproductionHydrocortisoneHydroxyprogesteronesSteroid 16-alpha-HydroxylaseCytochrome P-450 Enzyme SystemSteroid HydroxylasesRats, Sprague-DawleyAzasteroidsCryptorchidismSex DifferentiationAndrogen-Insensitivity SyndromeTranssexualismOvaryScrotumBody WeightSheepAndropauseDoping in SportsCopulationErectile DysfunctionDose-Response Relationship, DrugDiethylstilbestrolRats, Inbred StrainsProstatic Neoplasms