Sperm Injections, IntracytoplasmicSemenFertilization in VitroInfertility, MaleSpermatozoaMicroinjectionsSemen AnalysisSperm CountOligospermiaSemen PreservationSperm HeadEmbryo TransferSperm MotilityPregnancyPregnancy RateReproductive TechniquesCryopreservationOocytesSperm RetrievalEjaculationInjectionsInsemination, ArtificialMicromanipulationFertilizationPregnancy OutcomeSperm-Ovum InteractionsTestisCytoplasmSperm CapacitationCleavage Stage, OvumEmbryo ImplantationReproductive Techniques, AssistedAzoospermiaSperm MaturationEpididymisInfertilityAcrosomeY ChromosomeZona PellucidaBlastocystPregnancy, MultipleOvulation InductionZygoteFertilityEmbryo, MammalianEmbryonic and Fetal DevelopmentOocyte RetrievalSuctionInfertility, FemaleKlinefelter SyndromeEmbryonic DevelopmentVasovasostomySperm TailSex Chromosome AberrationsSpermatidsTripletsInsemination, Artificial, HomologousChromosome AberrationsAbortion, SpontaneousVasectomySperm TransportSperm BanksCongenital AbnormalitiesLive BirthAneuploidyFollicle Stimulating HormoneMenotropinsEmbryo Culture TechniquesMicrosurgerySpermatogenesisCryoprotective AgentsInseminationPovidoneMicroscopy, ElectronKaryotypingDigestive System AbnormalitiesSperm MidpieceDNA FragmentationVaricoceleParthenogenesisHorsesAcrosome ReactionMetaphaseFollicle Stimulating Hormone, HumanTime FactorsRetrospective StudiesVas DeferensInclusion BodiesFollicular FluidTwinsInjections, IntravenousInjections, IntramuscularSpecimen HandlingIn Situ Hybridization, FluorescenceCell NucleusPreimplantation DiagnosisAsthenozoospermiaInclusion Bodies, ViralOvarian Hyperstimulation SyndromeProtamines