OligospermiaAzoospermiaTestisInfertility, MaleSperm CountMesteroloneChromosomes, Human, YSpermatogenesisHydrocarbons, BrominatedSperm MotilitySpermatozoaSperm RetrievalTestosteroneTesticular DiseasesSeminal Plasma ProteinsSperm Injections, IntracytoplasmicSpermatidsSertoli CellsY ChromosomeSex Chromosome Disorders of Sex DevelopmentSex Chromosome AberrationsKlinefelter SyndromeEpididymisVasovasostomyMicrosurgerySemenVasectomyRete TestisCryptorchidism