title: A new bioassay of progestational activity.
mesh_terms: D000818:Animals; D001681:Biological Assay; D003656:Decidua; D005260:Female; D008722:Methods; D010053:Ovary; D010784:Photomicrography; D011247:Pregnancy; D011374:Progesterone / Q000032:analysis*; D051381:Rats; D014594:Uterine Neoplasms / Q000139:chemically induced; D014599:Uterus / Q000293:injuries
chemical_list: D011374:Progesterone