1. Trends in care practices, morbidity, and mortality of extremely preterm neonates, 1993-2012;Stoll;JAMA,2015
2. Ventilation in extremely preterm infants and respiratory function at 8 years;Doyle;N Engl J Med,2017
3. Surfactants: past, present and future;Halliday;J Perinatol,2008
4. Natural surfactant extract versus synthetic surfactant for neonatal respiratory distress syndrome;Soll;Cochrane Database Syst Rev,2001
5. Comparison of animal-derived surfactants for the prevention and treatment of respiratory distress syndrome in preterm infants;Singh;Cochrane Database Syst Rev,2015