Amenorrhea46, XX Disorders of Sex DevelopmentMullerian DuctsHypothalamic DiseasesOligomenorrheaAbnormalities, MultipleVaginaMenstruationGalactorrheaCongenital AbnormalitiesPrimary Ovarian InsufficiencyUterusSpineSyndromeMenstruation DisturbancesSomitesHyperprolactinemiaSurgically-Created StructuresGonadal Dysgenesis, 46,XYAnovulationMenstrual CyclePremenopauseMenorrhagiaFollicle Stimulating HormoneGenitalia, FemaleOvarian Function TestsLimb Deformities, CongenitalCerebral AqueductAnorexia NervosaTokyoAcneiform EruptionsHypogonadismEndometrial Ablation TechniquesEmpty Sella SyndromeMenopause, PrematureLIM-Homeodomain ProteinsPostpartum PeriodNorpregnadienesVirilismBulimiaPituitary DiseasesLuteinizing HormoneOvary