TY  - JOUR 
T1  - Analgesia: Methods and protocols
JO  - Brazilian Journal of Pharmaceutical Sciences
A1  - Fortes, Zuleica Bruno
SN  - 1984-8250
UL  - 10.1590/S1984-82502010000400031
VL  - 46 
Y1  - 2010
PB  - Brasil 
ER  -