TY  - JOUR 
T1  - Timing of initial surfactant treatment in very low birth weight newborns
JO  - einstein (São Paulo)
A1  - Rebello, Celso Moura
A1  - Nacif, Luciene Ferreira do Amaral
A1  - Deutsch, Alice D´Agostini
A1  - Paes, Ângela Tavares
SN  - 1679-4508
UL  - 10.1590/S1679-45082010AO1758
VL  - 8 
Y1  - 2010
PB  - Brasil 
ER  -