The final answers to single umbilical artery?
D000015:Abnormalities, Multiple; D001284:Atrophy; D000013:Congenital Abnormalities / Q000209:etiology; D004200:Diseases in Twins; D006801:Humans; D007231:Infant, Newborn; D011379:Prognosis; D014469:Umbilical Arteries / Q000002:abnormalities*