AzoospermiaOligospermiaSperm RetrievalSertoli Cell-Only SyndromeSperm Injections, IntracytoplasmicTestisInfertility, MaleSpermatozoaSpermatogenesisChromosomes, Human, YSeminal Plasma ProteinsSperm CountTesticular DiseasesSex Chromosome Disorders of Sex DevelopmentSex Chromosome AberrationsKlinefelter SyndromeY ChromosomeVasovasostomyMicrosurgerySperm MotilitySemenVasectomyReproductive TechniquesContraceptive Agents, MaleSpermatidsCardiomyopathy, HypertrophicSequence Tagged SitesEpididymisSemen AnalysisSuctionVas DeferensXYY KaryotypeVaricoceleTissue and Organ HarvestingEjaculationCryopreservationFollicle Stimulating HormoneChromosome DeletionGenetic LociEmbryo TransferPregnancy RatePregnancyEjaculatory DuctsSemen PreservationBiopsyVentricular Outflow ObstructionMicroinjectionsFertilization in VitroTestosteroneSertoli CellsEpitestosteroneCoronary Angiography