Sperm Injections, IntracytoplasmicFertilization in VitroMicroinjectionsInfertility, MaleSpermatozoaSperm HeadOligospermiaEmbryo TransferSperm CountPregnancyPregnancy RateReproductive TechniquesOocytesPregnancy OutcomeSperm RetrievalCryopreservationInjectionsMicromanipulationFertilizationSemen PreservationSperm-Ovum InteractionsSperm MotilityEjaculationCytoplasmCleavage Stage, OvumEmbryo ImplantationInsemination, ArtificialTestisSperm CapacitationSemenReproductive Techniques, AssistedTreatment OutcomeAzoospermiaSperm MaturationEpididymisInfertilityY ChromosomePregnancy, MultipleZona PellucidaAcrosomeBlastocystOvulation InductionZygoteEmbryo, MammalianOocyte RetrievalEmbryonic and Fetal DevelopmentSuctionInfertility, FemaleKlinefelter SyndromeSemen AnalysisEmbryonic DevelopmentVasovasostomyTripletsRetrospective StudiesSex Chromosome AberrationsSpermatidsAbortion, SpontaneousSperm TailChromosome AberrationsCongenital AbnormalitiesOutcome Assessment (Health Care)Live BirthTime FactorsFertilityMenotropinsInsemination, Artificial, HomologousEmbryo Culture TechniquesSperm TransportAneuploidyMicrosurgeryFollicle Stimulating HormoneProspective StudiesMicroscopy, ElectronKaryotypingVasectomyDigestive System AbnormalitiesSpermatogenesisPovidoneSperm MidpieceTwinsInseminationInjections, IntravenousParthenogenesisMetaphaseInjections, IntramuscularInclusion BodiesFollicular FluidFollicle Stimulating Hormone, HumanCryoprotective AgentsPreimplantation DiagnosisCell NucleusIn Situ Hybridization, FluorescenceOvarian Hyperstimulation SyndromeVas DeferensSperm BanksInclusion Bodies, ViralHorsesDNA FragmentationInfant, NewbornChromosome Disorders