Routine Indomethacin Prophylaxis:Has the Time ComePediatrics 98:784-785, Bada,H.S., 1996
Low-Dose Indomethacin and Prevention of Intraventricular Hemorrhage:A Multicenter Randomized TrialPediatrics 93:543-550, 643, 677994., Ment,L.R.,et al, 1994