TY  - JOUR 
T1  - Re: comparison between two shock wave regimens using frequencies of 60 and 90 impulses per minute for urinary stones
JO  - Clinics
A1  - Ho, Christopher C. K
SN  - 1807-5932
UL  - 10.1590/S1807-59322011000100033
VL  - 66 
Y1  - 2011
PB  - Brasil 
ER  -