[Ligation of patent ductus arteriosus in premature infants weighing less than 700 g at birth-selection of surgical instruments].
D004374:Ductus Arteriosus, Patent / Q000601:surgery*; D005260:Female; D006801:Humans; D007230:Infant, Low Birth Weight; D007231:Infant, Newborn; D007234:Infant, Premature; D008297:Male; D013525:Surgical Instruments