TY  - JOUR 
T1  - The importance of appropriate reference values in patients suspected of having obstructive lung disease
JO  - Jornal Brasileiro de Pneumologia
A1  - Pereira, Carlos Alberto de Castro
A1  - Soares, Maria Raquel
A1  - Gimenez, Andréa
SN  - 1806-3713
UL  - 10.1590/1806-3713/e20190299
VL  - 45 
Y1  - 2019
PB  - Brasil 
ER  -