9alpha-halogenated progestagens in the maintenance of pregnancy.
D000438:Alcohols; D000818:Animals; D002369:Castration; D002713:Chlorine; D004958:Estradiol / Q000494:pharmacology; D005260:Female; D005461:Fluorine; D003425:Flurogestone Acetate / Q000008:administration & dosage; D011247:Pregnancy; D011270:Pregnancy, Animal / Q000187:drug effects*; D011278:Pregnanes / Q000008:administration & dosage / Q000494:pharmacology*; D011374:Progesterone / Q000494:pharmacology; D051381:Rats
D000438:Alcohols; D011278:Pregnanes; D005461:Fluorine; D011374:Progesterone; D002713:Chlorine; D004958:Estradiol; D003425:Flurogestone Acetate