Infertility, MaleOligospermiaAzoospermiaChromosomes, Human, YAsthenozoospermiaSperm CountSpermatozoaSperm MotilityInfertilitySpermatogenesisSex Chromosome AberrationsInfertility, FemaleSemenSex Chromosome Disorders of Sex DevelopmentVaricoceleSemen AnalysisTestisMesteroloneSeminal Plasma ProteinsHydrocarbons, BrominatedFertilityKlinefelter SyndromeSequence Tagged SitesY ChromosomeAneuploidyChromosome DeletionSperm Injections, IntracytoplasmicKaryotypingChromosome AberrationsIn Situ Hybridization, FluorescenceTestosteroneSertoli Cell-Only SyndromeReproductive Techniques, AssistedProtaminesPregnancyEjaculationFertilization in VitroPolymerase Chain ReactionSpermatic CordGenital Diseases, MaleFallopian Tube DiseasesChromosomes, Human, Pair 18Abnormal KaryotypeChromosomes, Human, XChromosomes, Human, Pair 21VasectomyChromosomes, Human, Pair 13Pachytene StageSperm-Ovum InteractionsAcrosome ReactionSperm HeadTesticular DiseasesUrologic Surgical Procedures, MaleCryptorchidismVasovasostomyGenetic LociArgininosuccinic AcidEjaculatory DuctsFollicle Stimulating HormoneCase-Control StudiesEndometriosisSpermatidsHysterosalpingographyUreaplasma urealyticumMen