9van Ocermeire B,Smets K,Lecoutere D,et al.A comparison of ibuprofen and indomethacin for closure of patent ductus arteriosus[J].N EngL J Med,2002,343(10):674-681.
10Sharma PK,Garg SK,Narang A.pharmacokinetics of oral ibuprofen in premature infants[J].J Clin Pharmacol,2003,43(9):968-973.