title: Placentation and mammalian phylogeny.
mesh_terms: D000818:Animals; D001755:Blastocyst / Q000502:physiology; D003656:Decidua / Q000502:physiology; D005260:Female; D006801:Humans; D008322:Mammals; D008394:Marsupialia; D008431:Maternal-Fetal Exchange / Q000502:physiology; D009154:Mutation; D010802:Phylogeny; D010929:Placentation; D011247:Pregnancy