title: Outcome following closure of PDA in preterm infants.
mesh_terms: D004374:Ductus Arteriosus, Patent / Q000601:surgery* / Q000628:therapy; D005500:Follow-Up Studies; D006801:Humans; D007230:Infant, Low Birth Weight; D007231:Infant, Newborn; D011183:Postoperative Complications / Q000453:epidemiology*; D011379:Prognosis