[HORMONAL INHIBITION OF OVULATION].
D004997:Ethinyl Estradiol; D005193:Family Planning Services; D005260:Female; D006801:Humans; D009640:Norethindrone; D010060:Ovulation
D004997:Ethinyl Estradiol; D009640:Norethindrone
ETHINYL ESTRADIOL; FAMILY PLANNING; NORETHINDRONE
INHIBITION HORMONALE DE L'OVULATION.