Sertoli Cell-Only SyndromeSertoli CellsSyndromeSpermatogenesisTestisMetabolic Syndrome XDown SyndromeSertoli Cell TumorSeminiferous TubulesSeminiferous EpitheliumBlood-Testis BarrierNephrotic SyndromeSpermatidsSjogren's SyndromeSpermatogoniaRisk FactorsSpermatocytesFollicle Stimulating HormoneFollow-Up StudiesLeydig CellsProspective StudiesPregnancyTurner SyndromeAbnormalities, MultipleMyelodysplastic SyndromesRetrospective StudiesIncidenceTreatment OutcomeSpermatozoaReceptors, FSHCushing SyndromeCells, CulturedInfant, NewbornAcute Coronary SyndromePolycystic Ovary SyndromeTestosteroneWilliams SyndromeAndrogen-Binding ProteinPrevalenceDiGeorge SyndromeHorner SyndromePrader-Willi SyndromeLong QT SyndromeTesticular HormonesKlinefelter SyndromeGuillain-Barre SyndromeHemolytic-Uremic SyndromeInhibinsCompartment SyndromesTourette SyndromeImmunohistochemistryAntiphospholipid Syndrome