AzoospermiaOligospermiaSperm RetrievalInfertility, MaleChromosomes, Human, YTestisSpermatogenesisSeminal Plasma ProteinsSpermatozoaSperm CountTesticular DiseasesSperm Injections, IntracytoplasmicSex Chromosome Disorders of Sex DevelopmentSex Chromosome AberrationsKlinefelter SyndromeY ChromosomeVasovasostomyMicrosurgerySemenVasectomyReproductive TechniquesContraceptive Agents, MaleSpermatidsSequence Tagged SitesSperm MotilityEpididymisSemen AnalysisSuctionVas DeferensXYY KaryotypeVaricoceleTissue and Organ HarvestingEjaculationCryopreservationFollicle 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