Sperm Injections, IntracytoplasmicFertilization in VitroMicroinjectionsInfertility, MaleSpermatozoaSperm HeadOligospermiaEmbryo TransferSperm CountPregnancyPregnancy RateOocytesReproductive TechniquesSperm RetrievalCryopreservationInjectionsMicromanipulationPregnancy OutcomeFertilizationSemen PreservationSperm-Ovum InteractionsMembrane FusionSperm MotilityEjaculationCytoplasmCell FusionCleavage Stage, OvumEmbryo ImplantationTestisSperm CapacitationInsemination, ArtificialSemenReproductive Techniques, AssistedSperm MaturationAzoospermiaEpididymisInfertilityY ChromosomeAcrosomeRecombinant Fusion ProteinsZona PellucidaBlastocystPregnancy, MultipleZygoteEmbryo, MammalianOvulation InductionOocyte RetrievalEmbryonic and Fetal DevelopmentSuctionKlinefelter SyndromeInfertility, FemaleSemen AnalysisEmbryonic DevelopmentVasovasostomyTripletsSex Chromosome AberrationsSpermatidsSperm TailChromosome AberrationsAbortion, SpontaneousCongenital AbnormalitiesSpinal FusionLive BirthFertilityMenotropinsInsemination, Artificial, HomologousEmbryo Culture TechniquesSperm TransportViral Fusion ProteinsAneuploidyGene FusionMicroscopy, ElectronFollicle Stimulating HormoneMicrosurgeryKaryotypingVasectomySpermatogenesisDigestive System AbnormalitiesPovidoneCell NucleusSperm MidpieceParthenogenesisInclusion BodiesMetaphaseInseminationMolecular Sequence DataOncogene Proteins, FusionTime FactorsInjections, IntramuscularInjections, IntravenousTwinsRetrospective StudiesCryoprotective AgentsFollicular FluidFollicle Stimulating Hormone, HumanPreimplantation DiagnosisInclusion Bodies, ViralVas DeferensHorsesSperm Banks