Exclusion criteria (any one or more mandates exclusion)
lung disease, congenital anomaly, pulmonary hypoplasia
LUNG DISEASE

More than one prior surfactant dosePrior treatment with postnatal corticosteroids for the prevention of lung disease (inhaled, nebulized, intratracheal, or systemic)The infant is considered unlikely to survive the immediate postnatal transition and/or is not going to be admitted to the NICUKnown or suspected major congenital anomaly that is likely to affect respiratory status, including a postnatal clinical diagnosis of severe pulmonary hypoplasia following premature prolonged rupture of fetal membranes with resultant severe oligo- or anhydramnios, where the clinician feels survival is unlikelyThe infant is likely to be transferred to a non-participating NICU within 24 h of birth