Sperm Injections, IntracytoplasmicFertilityFertilization in VitroInfertility, MaleSpermatozoaMicroinjectionsOligospermiaSperm HeadEmbryo TransferSperm CountPregnancyPregnancy RateOocytesReproductive TechniquesCryopreservationSperm RetrievalInjectionsSemen PreservationSperm MotilityFertilizationPregnancy OutcomeMicromanipulationSperm-Ovum InteractionsInsemination, ArtificialEjaculationTestisInfertilitySemenReproductive Techniques, AssistedCytoplasmEmbryo ImplantationCleavage Stage, OvumSperm CapacitationInfertility, FemaleEpididymisSperm MaturationAzoospermiaY ChromosomeSemen AnalysisZona PellucidaAcrosomePregnancy, MultipleOvulation InductionOocyte RetrievalBlastocystFertility PreservationEmbryo, MammalianZygoteEmbryonic and Fetal DevelopmentSuctionKlinefelter SyndromeEmbryonic DevelopmentFertility AgentsSpermatidsVasovasostomySex Chromosome AberrationsSperm TailSpermatogenesisTripletsAbortion, SpontaneousChromosome AberrationsLive BirthSperm TransportCongenital AbnormalitiesBirth RateFollicle Stimulating HormoneMenotropinsEmbryo Culture TechniquesInsemination, Artificial, HomologousAneuploidyMicrosurgeryVasectomySperm BanksInseminationMicroscopy, ElectronKaryotypingSperm MidpieceCryoprotective AgentsDigestive System AbnormalitiesReproductionParthenogenesisPovidoneTime FactorsTwinsFollicle Stimulating Hormone, HumanFollicular FluidMetaphaseVas DeferensRetrospective StudiesOvarian FollicleInjections, IntramuscularInclusion BodiesCell NucleusOvaryInjections, IntravenousPreimplantation DiagnosisAcrosome ReactionDNA FragmentationHorsesGonadotropin-Releasing Hormone