Prenatal diagnosis of single umbilical artery by ultrasound.
D000328:Adult; D005260:Female; D006801:Humans; D006831:Polyhydramnios / Q000175:diagnosis; D011247:Pregnancy; D011296:Prenatal Diagnosis; D014463:Ultrasonography; D014469:Umbilical Arteries / Q000002:abnormalities*