Delayed closure of the ductus arteriosus.
D004200:Diseases in Twins; D004374:Ductus Arteriosus, Patent / Q000150:complications*; D005260:Female; D006333:Heart Failure / Q000209:etiology*; D006801:Humans; D007231:Infant, Newborn; D008297:Male; D013902:Radiography, Thoracic; D012127:Respiratory Distress Syndrome, Newborn / Q000150:complications*