TY  - JOUR 
T1  - Chronic pain related to quality of sleep
JO  - einstein (São Paulo)
A1  - Tonial, Leandro Freitas
A1  - Stechman Neto, José
A1  - Hummig, Wagner
SN  - 1679-4508
UL  - 10.1590/S1679-45082014AO2825
VL  - 12 
Y1  - 2014
PB  - Brasil 
ER  -