title: The sexual cycle in rats during progesterone and progestogen treatment.
mesh_terms: D000818:Animals; D004963:Estrenes / Q000494:pharmacology; D004971:Estrus / Q000187:drug effects*; D005040:Ethynodiol Diacetate / Q000494:pharmacology; D005260:Female; D009640:Norethindrone / Q000494:pharmacology; D011247:Pregnancy; D011374:Progesterone / Q000494:pharmacology*; D045167:Progesterone Congeners / Q000494:pharmacology*; D051381:Rats; D013997:Time Factors; D014626:Vaginal Smears
chemical_list: D004963:Estrenes; D045167:Progesterone Congeners; D011374:Progesterone; D005040:Ethynodiol Diacetate; D009640:Norethindrone