Single umbilical artery. A report of 50 cases.
D001724:Birth Weight; D000013:Congenital Abnormalities / Q000150:complications; D005260:Female; D006801:Humans; D007226:Infant Mortality; D007231:Infant, Newborn; D007234:Infant, Premature; D008297:Male; D008423:Maternal Age; D010298:Parity; D011247:Pregnancy; D011248:Pregnancy Complications; D011272:Pregnancy, Multiple; D014469:Umbilical Arteries / Q000002:abnormalities*