Documents Permissive hypercapnia in extremely low birthweight infants (PHELBI): a randomised controlled...

534 www.thelancet.com/respiratory Vol 3 July 2015 Articles Lancet Respir Med 2015; 3: 534–43 Published Online June 16, 2015 http://dx.doi.org/10.1016/ S2213-2600(15)00204-0…