title: Progestogens as contraceptives.
mesh_terms: D000818:Animals; D002715:Chlormadinone Acetate; D003276:Contraceptives, Oral / Q000145:classification* / Q000494:pharmacology; D005040:Ethynodiol Diacetate; D005260:Female; D009640:Norethindrone; D009641:Norethynodrel; D009644:Norgestrel; D011372:Progestins / Q000145:classification* / Q000494:pharmacology; D011817:Rabbits; D051381:Rats
chemical_list: D003276:Contraceptives, Oral; D011372:Progestins; D002715:Chlormadinone Acetate; D009644:Norgestrel; D005040:Ethynodiol Diacetate; D009641:Norethynodrel; D009640:Norethindrone