AzoospermiaOligospermiaAnodontiaVas DeferensOval Window, EarInfertility, MaleVascular MalformationsSperm RetrievalAzygos VeinDiagnostic Techniques, SurgicalVena Cava, InferiorPortal VeinPulmonary ValveAbnormalities, MultiplePericardiumCuspidChromosomes, Human, YTestisSpermatogenesisCongenital AbnormalitiesSeminal Plasma ProteinsCystic Fibrosis Transmembrane Conductance RegulatorTomography, X-Ray ComputedSpermatozoaSperm CountTesticular DiseasesSperm Injections, IntracytoplasmicHeart Defects, CongenitalSex Chromosome Disorders of Sex DevelopmentSex Chromosome AberrationsKlinefelter SyndromeY ChromosomeVasovasostomyMicrosurgerySemenVasectomyReproductive TechniquesContraceptive Agents, MaleSpermatidsSequence Tagged SitesInfant, NewbornSperm MotilityEpididymisSemen AnalysisSuctionXYY KaryotypeMutationVaricoceleTissue and Organ HarvestingMagnetic Resonance ImagingEjaculationCryopreservationFollicle Stimulating HormoneChromosome DeletionGenetic LociEmbryo TransferPregnancy RateEjaculatory DuctsSemen PreservationBiopsyMicroinjectionsFertilization in VitroTestosteroneSertoli CellsEpitestosteroneTuberculosis, Male GenitalPregnancySperm MaturationAsthenozoospermiaFertilityGonadal Dysgenesis, MixedInhibinsEpididymitisCryptorchidismPregnancy OutcomeAbnormal KaryotypeRNA-Binding ProteinsGene DeletionSeminiferous TubulesDesogestrelKaryotypingGenital Diseases, MaleReproductive Techniques, AssistedAdrenal Rest TumorOstomyHypogonadismMyoclonic Epilepsies, ProgressiveFertilizationGlycerylphosphorylcholineSpecimen HandlingKaryotypeInfertilityChromosome AberrationsLuteinizing Hormone