title: Ligation of patent ductus arteriosus for persistent respiratory distress syndrome in premature infants.
mesh_terms: D001724:Birth Weight; D002245:Carbon Dioxide / Q000097:blood; D004374:Ductus Arteriosus, Patent / Q000000981:diagnostic imaging / Q000601:surgery*; D005260:Female; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D008026:Ligation; D008297:Male; D011859:Radiography; D012121:Respiration, Artificial; D012127:Respiratory Distress Syndrome, Newborn / Q000000981:diagnostic imaging / Q000401:mortality / Q000601:surgery*
chemical_list: D002245:Carbon Dioxide