Sperm RetrievalSperm Injections, IntracytoplasmicOligospermiaAzoospermiaFertilization in VitroSpermatozoaInfertility, MaleMicroinjectionsReproductive TechniquesEmbryo TransferSperm HeadSuctionPregnancy RateTestisCryopreservationEjaculationPregnancySemen PreservationSperm MotilityTissue and Organ HarvestingSperm CountOocytesPregnancy OutcomeVasovasostomyKlinefelter SyndromeMicromanipulationEpididymisPosthumous ConceptionMicrosurgeryReproductive Techniques, AssistedFertilizationCleavage Stage, OvumSperm-Ovum InteractionsCytoplasmEmbryo ImplantationOocyte RetrievalInsemination, ArtificialSpermatogenesisSemenTesticular DiseasesSperm CapacitationTuberculosis, Male GenitalAutonomic DysreflexiaInfertilityY ChromosomeOvulation InductionSperm MaturationMicrodissectionPregnancy, MultipleBlastocystInformation Storage and RetrievalEmbryo, MammalianZona PellucidaZygoteInfertility, FemaleEmbryonic and Fetal DevelopmentAcrosomeFollicle Stimulating HormoneBiopsySpecimen HandlingEmbryonic DevelopmentSex Chromosome AberrationsTripletsSperm TailSpermatidsChromosome AberrationsAbortion, SpontaneousSemen AnalysisMenotropinsCongenital AbnormalitiesLive BirthRetrospective StudiesInsemination, Artificial, HomologousEmbryo Culture TechniquesMental RecallAneuploidyFertilityDigestive System AbnormalitiesKaryotypingVasectomyFollicular FluidPovidoneFollicle Stimulating Hormone, HumanPreimplantation DiagnosisSperm TransportOvarian Hyperstimulation SyndromeTwinsInseminationMetaphaseParthenogenesisCryoprotective AgentsVas DeferensChromosome DisordersIn Situ Hybridization, FluorescenceMicroscopy, ElectronZygote Intrafallopian TransferBiopsy, NeedleOocyte DonationCell NucleusBlastomeres