Effect of oral contraceptives on lactation.
D004997:Ethinyl Estradiol / Q000494:pharmacology*; D005260:Female; D006801:Humans; D007774:Lactation / Q000187:drug effects*; D008234:Lynestrenol / Q000494:pharmacology*; D008656:Mestranol / Q000494:pharmacology*; D010919:Placebos; D011247:Pregnancy
D010919:Placebos; D004997:Ethinyl Estradiol; D008656:Mestranol; D008234:Lynestrenol