TY  - JOUR 
T1  - Interfaces for noninvasive ventilation: does it matter?
JO  - Jornal Brasileiro de Pneumologia
A1  - Keenan, Sean P.
A1  - Winston, Brent
SN  - 1806-3713
UL  - 10.1590/S1806-37132009000200001
VL  - 35 
Y1  - 2009
PB  - Brasil 
ER  -