title: Delay of implantation in intact rats treated with progestins.
mesh_terms: D000818:Animals; D001835:Body Weight; D010064:Embryo Implantation / Q000187:drug effects*; D005260:Female; D005333:Fetus; D008525:Medroxyprogesterone / Q000494:pharmacology*; D009639:Norethandrolone / Q000494:pharmacology*; D011247:Pregnancy; D011270:Pregnancy, Animal; D011374:Progesterone / Q000494:pharmacology*; D051381:Rats
chemical_list: D011374:Progesterone; D008525:Medroxyprogesterone; D009639:Norethandrolone