title: Preclinical evaluation of intrauterine progesterone as a contraceptive agent. III. Embryology and toxicology.
mesh_terms: D000818:Animals; D000831:Animals, Newborn; D002585:Cesarean Section; D004341:Drug Evaluation; D004626:Embryology; D005260:Female; D010919:Placebos; D011247:Pregnancy; D011374:Progesterone / Q000494:pharmacology* / Q000633:toxicity; D011817:Rabbits; D014599:Uterus / Q000601:surgery
chemical_list: D010919:Placebos; D011374:Progesterone