Early high dose antioxidant vitamins do not prevent bronchopulmonary dysplasia in premature baboons exposed to prolonged hyperoxia: a pilot study - Berger,T.M.; Frei,B.; Frei,N.; Avery,M.E.; Suh,J.; Yoder,B.A.; Coalson,J.J. (Pediatr Res, 1998)