title: Surgical management of patent ductus arteriosus in newborn infants of low birthweights. A review of 33 cases.
mesh_terms: D004374:Ductus Arteriosus, Patent / Q000150:complications / Q000378:metabolism / Q000601:surgery*; D006801:Humans; D006819:Hyaline Membrane Disease / Q000150:complications; D007230:Infant, Low Birth Weight; D007231:Infant, Newborn; D008026:Ligation; D013997:Time Factors