title: Placental-radiographic analysis of parasitic acardiac fetus: partially common umbilical circulation.
mesh_terms: D009008:Abnormalities, Severe Teratoid / Q000000981:diagnostic imaging; D005260:Female; D006801:Humans; D010920:Placenta / Q000002:abnormalities; D011247:Pregnancy; D011859:Radiography; D014427:Twins; D014469:Umbilical Arteries / Q000002:abnormalities