Sperm RetrievalAzoospermiaOligospermiaSperm Injections, IntracytoplasmicTissue and Organ HarvestingSuctionSpermatozoaTestisInfertility, MalePosthumous ConceptionReproductive TechniquesEjaculationSperm HeadSemen PreservationFertilization in VitroSperm CountVasovasostomyMicrosurgeryCryopreservationEpididymisPregnancy RateKlinefelter SyndromeSperm MotilitySperm CapacitationTuberculosis, Male GenitalAutonomic DysreflexiaEmbryo TransferTesticular DiseasesMicrodissectionReproductive Techniques, AssistedInformation Storage and RetrievalPregnancyMicroinjectionsPregnancy OutcomeSpermatogenesisFertilizationOocyte RetrievalMental RecallSperm MaturationBiopsySperm-Ovum InteractionsSpecimen HandlingAcrosomeSperm TransportFollicle Stimulating HormoneSemenOocytesSperm MidpieceMemoryBiopsy, NeedleSemen AnalysisZona PellucidaSperm BanksEmbryo ImplantationRetrospective StudiesOvulation InductionFertilityInfertilityInfertility, FemaleAbstracting and Indexing as TopicMemory, EpisodicInsemination, ArtificialPredictive Value of TestsPregnancy, MultipleSemanticsSperm Whale