title: Study on the action of D-norgestrel as a postcoital contraceptive agent.
mesh_terms: D000328:Adult; D002584:Cervix Uteri / Q000502:physiology; D003281:Contraceptives, Postcoital / Q000494:pharmacology*; D003283:Contraceptives, Postcoital, Synthetic / Q000494:pharmacology*; D004958:Estradiol / Q000097:blood; D005260:Female; D006801:Humans; D007986:Luteinizing Hormone / Q000097:blood; D008598:Menstruation / Q000187:drug effects*; D009644:Norgestrel / Q000494:pharmacology*; D014626:Vaginal Smears
chemical_list: D003281:Contraceptives, Postcoital; D003283:Contraceptives, Postcoital, Synthetic; D009644:Norgestrel; D004958:Estradiol; D007986:Luteinizing Hormone