Semen AnalysisSemenSperm CountSperm MotilityInfertility, MaleAndrologySpermatozoaSemen PreservationVaricoceleManuals as TopicOligospermiaEjaculationVasectomyAsthenozoospermiaSperm BanksAzoospermiaFertilityClinical Laboratory ServicesChromomycin A3ScrotumAcrosome ReactionCryopreservationEmbryologySpermatogenesisInsemination, ArtificialTestisSperm HeadSpermatoceleSperm-Ovum InteractionsSexual AbstinenceInfertilityWorld Health OrganizationQuality ControlSeminal Plasma ProteinsFertility PreservationReproductive Techniques, AssistedInsemination, Artificial, HomologousPregnancyPregnancy RateChromosomes, Human, YFertilization in VitroClinical Laboratory TechniquesTestosteronePhysical ExaminationFertilizationFollicle Stimulating HormoneZona PellucidaReference ValuesSperm Injections, IntracytoplasmicInfertility, FemaleDNA FragmentationTime FactorsProspective StudiesRetrospective StudiesLuteinizing HormonePredictive Value of Tests