title: Effects of low dose oral contraceptives containing norethindrome and ethinyl estradiol on serum levels of progesterone and pituitary gonadotropins.
mesh_terms: D000328:Adult; D004338:Drug Combinations; D004997:Ethinyl Estradiol / Q000008:administration & dosage / Q000494:pharmacology*; D005260:Female; D005640:Follicle Stimulating Hormone / Q000097:blood; D006065:Gonadotropins, Pituitary / Q000097:blood*; D006801:Humans; D007986:Luteinizing Hormone / Q000097:blood; D009640:Norethindrone / Q000008:administration & dosage / Q000494:pharmacology*; D010060:Ovulation / Q000187:drug effects*; D011374:Progesterone / Q000097:blood*
chemical_list: D004338:Drug Combinations; D006065:Gonadotropins, Pituitary; D004997:Ethinyl Estradiol; D011374:Progesterone; D007986:Luteinizing Hormone; D005640:Follicle Stimulating Hormone; D009640:Norethindrone