TY  - JOUR 
T1  - Efficacy of paraspinal anesthetic block in patients with chronic pelvic pain refractory to drug therapy: a randomized clinical trial
JO  - Revista Brasileira de Ginecologia e Obstetrícia
A1  - Rosa, Karen Felix da
A1  - Amantéa, Vinícius Atrib
A1  - Santos, Antônio Cardoso dos
A1  - Savaris, Ricardo Francalacci
SN  - 0100-7203
UL  - 10.1590/SO100-720320150005201
VL  - 37 
Y1  - 2015
PB  - Brasil 
ER  -