Delivery at \>24+0 weeks and ≤32+6 weeks of gestation
Postnatal age \>7 days but \< 6 weeks old
Weight ≥1,000grams at the time of study
Receiving clinically prescribed CPAP at pressures of 5-8cm H2O
Requiring an FiO2 of ≤0.60
You may not be if
Chromosomal disorder (aneuploidy)
Presence of major congenital birth defect including airway anomalies, congenital diaphragmatic hernia or cardiac defects (other than patent foramen ovale and patent ductus arteriosus)
