3Lefort S,Diniz EM,Vaz FA. Clinical course of premature infants intubated in the delivery room,submitted or not to porcine-derived lung surfactant therapy within the first hour of life. J Matern Fetal Neonatal Med, 2003,14:187-196.
4Plaraka R,Kopecky P,Seborn V,et al. Early versus delayed surfactant administration in extremely premature neonates with respiratory distress syndrome ventilated by high-frequency oscillatory ventilation. Intensive Care Medicine, 2002, 28:1483-1490.
