title: Maintenance of pregnancy by synthetic progestagens in guinea-pigs ovariectomized before implantation; progesterone-binding protein and placental progesterone secretion.
mesh_terms: D000818:Animals; D002369:Castration; D010064:Embryo Implantation; D005260:Female; D006168:Guinea Pigs; D008525:Medroxyprogesterone / Q000494:pharmacology; D008657:Metabolic Clearance Rate; D008722:Methods; D009644:Norgestrel / Q000494:pharmacology; D010920:Placenta / Q000378:metabolism*; D011247:Pregnancy; D011270:Pregnancy, Animal; D011374:Progesterone / Q000096:biosynthesis / Q000097:blood / Q000378:metabolism*; D011372:Progestins / Q000494:pharmacology*; D011485:Protein Binding; D012712:Serum Globulins / Q000032:analysis; D013997:Time Factors
chemical_list: D011372:Progestins; D012712:Serum Globulins; D009644:Norgestrel; D011374:Progesterone; D008525:Medroxyprogesterone