TY  - JOUR 
T1  - Chronic low back pain and physical activity among patients within the Brazilian National Health System: a cross-sectional study
JO  - Sao Paulo Medical Journal
A1  - Zanuto, Everton Alex Carvalho
A1  - Fernandes, Rômulo Araújo
A1  - Turi-Lynch, Bruna Camilo
A1  - Castoldi, Robson Chacon
A1  - Morais, Luana Carolina de
A1  - Silva, Pedro Victor Tonicante da
A1  - Codogno, Jamile Sanches
SN  - 1516-3180
UL  - 10.1590/1516-3180.2019.0312.R1.19112019
VL  - 138 
Y1  - 2020
PB  - Brasil 
ER  -