- Impact of bronchopulmonary dysplasia, brain injury, and severe retinopathy on the outcome of extremely low-birth-weight infants at 18 months: results from the trial of indomethacin prophylaxis in preterms. Schmidt, B., Asztalos, E.V., Roberts, R.S., Robertson, C.M., Sauve, R.S., Whitfield, M.F. JAMA (2003)