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Efficacy, safety and sustainability of treatment continuation and results of an oral contraceptive containing 30 mcg ethinyl estradiol and 2 mg chlormadinone acetate, in long-term usage (up to 45 cycles) — an open-label, prospective, noncontrolled, office-based Phase III study

ContraceptionContraceptive UseContraceptive ImplantsMcg Ethinyl EstradiolHormonal ContraceptiveSexual And Reproductive HealthMedicineOral ContraceptiveContraceptive DiscontinuationReproductive HealthGynecologyContraceptive MethodsMg Chlormadinone AcetateContraceptive UptakePharmacotherapyPublic HealthPharmacologyWomen's Health