MenstruationMenstrual CycleAmenorrheaMenstruation DisturbancesMenstrual Hygiene ProductsPremenstrual SyndromeLuteal PhasePrimary Ovarian InsufficiencyFertile PeriodDysmenorrheaPolycystic Ovary SyndromeMenstruation-Inducing AgentsHirsutismFollicular PhaseHyperandrogenismProgesteroneMenorrhagiaDanazolClimactericEstradiolMenarchePregnanediolAnovulationMenopause, PrematureEndometriumVaginaEndometriosisContraceptives, OralOvaryFollicle Stimulating HormoneEndocrine System DiseasesLuteinizing HormoneFollicle Stimulating Hormone, HumanPremenopauseContraceptive Agents, FemaleInfertility, FemaleOvulationPregnancyMenopauseFertilityUterusTime FactorsMacaca mulattaEstrogensGonadotropin-Releasing HormoneAge FactorsTestosteroneProspective StudiesQuestionnairesRisk FactorsBody Mass IndexTreatment OutcomeFollow-Up StudiesRetrospective Studies