Gao 2014.

Methods	Randomized controlled trial
Participants	Preterm infants with RDS
Interventions	NIPPV (synchronized bilevel) vs NCPAP
Outcomes	FiO2 at 24 hours, respiratory index (RI) at 12‐24 hours post ventilation, abdominal distention, period of noninvasive ventilation, ratio of intubation for invasive ventilation if failed noninvasive ventilation, air leak syndrome, neonatal necrotizing enterocolitis, periventricular‐intraventricular hemorrhage, bronchopulmonary dysplasia, retinopathy of prematurity, mortality rate after 36 hours of age, rate of abandon for discharge
Notes	PMID: 24680406 (requires translation from Chinese)