Sperm Injections, IntracytoplasmicSperm HeadSperm CountSpermatozoaInfertility, MaleOligospermiaSperm MotilityFertilization in VitroMicroinjectionsSpermatogenesisEjaculationTestisSemenEpididymisEmbryo TransferSemen AnalysisSperm CapacitationPregnancyOocytesPregnancy RateReproductive TechniquesFertilityCryopreservationFertilizationSperm-Ovum InteractionsSemen PreservationSperm RetrievalSpermatidsInjectionsSperm MaturationMicromanipulationPregnancy OutcomeInsemination, ArtificialAneuploidyAcrosomeCytoplasmCleavage Stage, OvumEmbryo ImplantationZona PellucidaAzoospermiaReproductive Techniques, AssistedSperm TransportInfertilityY ChromosomeReproductionZygoteBlastocystSperm MidpiecePregnancy, MultipleSuctionOvulation InductionEmbryo, MammalianEmbryonic and Fetal DevelopmentOocyte RetrievalKlinefelter SyndromeInfertility, FemaleEmbryonic DevelopmentSperm BanksVasovasostomyTestosteroneSex Chromosome AberrationsTripletsChromosome AberrationsOrgan SizeSperm TailAbortion, SpontaneousInsemination, Artificial, HomologousCongenital AbnormalitiesLive BirthEmbryo Culture TechniquesVasectomyMenotropinsFollicle Stimulating HormoneMicrosurgeryMicroscopy, ElectronInseminationPovidoneCryoprotective AgentsOvumProtaminesKaryotypingParthenogenesisDNA FragmentationSperm WhaleDigestive System AbnormalitiesMetaphaseCell NucleusFollicular FluidIn Situ Hybridization, FluorescenceFallopian TubesVas DeferensFollicle Stimulating Hormone, HumanHorsesTwinsTime FactorsInclusion BodiesPreimplantation DiagnosisInjections, IntravenousInjections, IntramuscularRetrospective Studies