Fertility and Sterility · 1982 · 23 citations · 6 references
MedicineGynecologyObstetricsContraceptionReproductive EndocrinologyReproductive HealthContraceptive MethodsContraceptive PharmacotherapyContraceptive SafetyContraceptive UseFemale ContraceptionHormonal ContraceptionContraceptive Method EffectivenessEstrogen-progestin ContraceptionFemale Contraceptive UseHormonal Contraceptive TherapyOral Contraceptive EffectivenessOral Contraceptive PillsVaginal Administration
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