title: Comparison of serial PGF 2alpha concentrations in serum of normal women and in those receiving oral contraceptives.
mesh_terms: D003276:Contraceptives, Oral / Q000494:pharmacology*; D004338:Drug Combinations; D004958:Estradiol / Q000494:pharmacology; D005260:Female; D006801:Humans; D008598:Menstruation; D009640:Norethindrone / Q000494:pharmacology; D011460:Prostaglandins F / Q000097:blood*
chemical_list: D003276:Contraceptives, Oral; D004338:Drug Combinations; D011460:Prostaglandins F; D004958:Estradiol; D009640:Norethindrone