MenopausePerimenopauseEstrogen Replacement TherapyMenopause, PrematureFollicle Stimulating HormoneLongitudinal StudiesPostmenopauseHot FlashesPrimary Ovarian InsufficiencyEpithelial-Mesenchymal TransitionClimactericHormone Replacement TherapyMenarchePremenopauseOvariectomyPhase TransitionEstrogensOsteoporosis, PostmenopausalReproductive HistoryWomen's HealthAge FactorsHysterectomyTransition ElementsTransition to Adult Care