AzoospermiaOligospermiaInfertility, MaleChromosomes, Human, YSperm CountAsthenozoospermiaSpermatogenesisSpermatozoaKaryotypeTestisSperm MotilitySex Chromosome AberrationsMesteroloneKaryotypingSeminal Plasma ProteinsSemenSex Chromosome Disorders of Sex DevelopmentSemen AnalysisSperm RetrievalKlinefelter SyndromeSperm Injections, IntracytoplasmicSequence Tagged SitesHydrocarbons, BrominatedY ChromosomeAbnormal KaryotypeVaricoceleSperm HeadChromosome DeletionChromosome AberrationsFertilityAneuploidyTestosteroneSperm CapacitationTesticular DiseasesIn Situ Hybridization, FluorescenceXYY KaryotypeSperm MaturationEpididymisVasovasostomyPregnancyMicrosurgeryVasectomySemen PreservationEjaculationCryopreservationReproductive TechniquesContraceptive Agents, MaleFertilizationSpermatidsSuctionVas DeferensSperm TransportTissue and Organ HarvestingPolymerase Chain ReactionChromosome BandingSperm-Ovum InteractionsPregnancy RateCytogenetic AnalysisMicroinjectionsFollicle Stimulating HormoneMosaicismGenetic LociAcrosomeTurner SyndromeEjaculatory DuctsChromosome DisordersEmbryo TransferBiopsySperm MidpieceFertilization in VitroSertoli CellsPregnancy OutcomeTrisomySperm BanksEpitestosteroneTranslocation, GeneticSeminiferous TubulesTuberculosis, Male GenitalMonosomyReproductive Techniques, AssistedChromosome PaintingCryptorchidismChromosomes, Human, XGene DeletionInhibinsZona PellucidaMeiosisGonadal Dysgenesis, MixedEpididymitisInfertility