Eligibility criteria {10}
Lethal malformations
The following are the inclusion criteria:Preterm infants with gestational age between 25 weeks and 0 days and 28 weeks and 6 daysAge < 60 minSpontaneous breathingPulse oximetric measured oxygen saturation ≥ 90% at FiOWritten informed consent of at least one legal guardianThe following is the exclusion criteria:Lethal malformations