RT Journal Article SR Electronic T1 Systematic review of prophylactic vs rescue surfactant JF Archives of Disease in Childhood - Fetal and Neonatal Edition JO Arch Dis Child Fetal Neonatal Ed FD BMJ Publishing Group Ltd and Royal College of Paediatrics and Child Health SP F70 OP F74 DO 10.1136/fn.77.1.F70 VO 77 IS 1 A1 C J Morley YR 1997 UL http://fn.bmj.com/content/77/1/F70.abstract AB