title: The PDA syndrome in preterm infants. The technique of single film aortography and other diagnostic radiographic criteria.
mesh_terms: D001027:Aortography / Q000379:methods*; D004374:Ductus Arteriosus, Patent / Q000150:complications / Q000000981:diagnostic imaging*; D006801:Humans; D007231:Infant, Newborn; D012127:Respiratory Distress Syndrome, Newborn / Q000209:etiology