AmenorrheaPubertyPuberty, PrecociousPuberty, DelayedHypothalamic DiseasesSexual MaturationOligomenorrheaMenstruationGalactorrheaPrimary Ovarian InsufficiencyMenstruation DisturbancesGonadal Dysgenesis, 46,XYLuteinizing HormoneFollicle Stimulating HormoneHyperprolactinemiaGonadotropin-Releasing HormoneHypogonadismAnovulationMenstrual CycleOvaryPremenopauseMenorrhagiaVirilismOvarian Function TestsEstradiolCerebral AqueductAnorexia NervosaTokyoTestosteroneAcneiform EruptionsEndometrial Ablation TechniquesEmpty Sella SyndromePregnancyKisspeptinsTurner SyndromeReproductionMenopause, PrematurePostpartum PeriodBulimiaNorpregnadienesAge Determination by SkeletonBody WeightPolycystic Ovary Syndrome46, XX Disorders of Sex DevelopmentFertilityBromocriptinePituitary DiseasesHormonesProlactinSports