OligospermiaSperm MotilityInfertility, MaleTestosteroneAzoospermiaSperm CountSpermatozoaAsthenozoospermiaChromosomes, Human, YSemenSpermatogenesisTestisSemen AnalysisMesteroloneSex Chromosome AberrationsHydrocarbons, BrominatedSperm CapacitationSperm HeadSeminal Plasma ProteinsSemen PreservationFertilitySex Chromosome Disorders of Sex DevelopmentEpididymisVaricoceleSperm TailEjaculationSperm MaturationSequence Tagged SitesAcrosomeKlinefelter SyndromeSperm Injections, IntracytoplasmicSperm-Ovum InteractionsSperm TransportGastrointestinal MotilityY ChromosomeFertilizationCryopreservationSperm MidpieceAneuploidyTestosterone PropionateChromosome DeletionAcrosome ReactionHypogonadismLuteinizing HormoneAndrogensSeminal Vesicle Secretory ProteinsContraceptive Agents, MaleOrchiectomyPregnancyDihydrotestosteroneIn Situ Hybridization, FluorescenceKaryotypingChromosome AberrationsSex Hormone-Binding GlobulinGenitalia, MaleZona PellucidaFollicle Stimulating HormoneEstradiolSperm BanksInsemination, ArtificialCryoprotective AgentsSeminal VesiclesFlagellaGonadal Steroid HormonesSperm Immobilizing AgentsEpitestosteroneOrgan SizeCastrationReproductionSexual Behavior, AnimalCell MovementAndrostenedioneAntelopesAcinonyxPolymerase Chain ReactionSea UrchinsInsemination, Artificial, HomologousSeminiferous TubulesCattleEgg YolkOvumFertilization in VitroCervix MucusTime FactorsComb and WattlesScrotumFlutamideDose-Response Relationship, DrugSexual MaturationProgesteroneVasectomyChorionic GonadotropinInhibinsalpha-ChlorohydrinMasturbationProstateReceptors, AndrogenFallopian TubesSertoli CellsTestosterone Congeners