Semen AnalysisSemenSperm CountSperm MotilityInfertility, MaleAndrologySpermatozoaSemen PreservationVaricoceleManuals as TopicOligospermiaEjaculationVasectomyAsthenozoospermiaSperm BanksAzoospermiaFertilityClinical Laboratory ServicesChromomycin A3CryopreservationAcrosome ReactionScrotumEmbryologySpermatogenesisInsemination, ArtificialTestisSperm HeadSpermatoceleSperm-Ovum InteractionsSexual AbstinenceInfertilityWorld Health OrganizationQuality ControlSeminal Plasma ProteinsFertility PreservationReproductive Techniques, AssistedInsemination, Artificial, HomologousPregnancy RateChromosomes, Human, YFertilization in VitroPregnancyClinical Laboratory TechniquesTestosteroneMicroscopyFertilizationFollicle Stimulating HormoneZona PellucidaMicroscopy, ElectronSperm Injections, IntracytoplasmicReference ValuesInfertility, FemaleDNA FragmentationTime FactorsLuteinizing HormoneMicroscopy, Electron, ScanningRetrospective StudiesProspective StudiesMicroscopy, Atomic Force