TY  - JOUR 
T1  - Comparison of retrograde flexible ureteroscopy and percutaneous nephrolithotomy in treating intermediate-size renal stones (2-3cm): a meta-analysis and systematic review
JO  - International braz j urol
A1  - Zewu, Zhu
A1  - Cui, Yu
A1  - Feng, Zeng
A1  - Yang, Li
A1  - Chen, Hequn
SN  - 1677-5538
UL  - 10.1590/S1677-5538.IBJU.2018.0510
VL  - 45 
Y1  - 2019
PB  - Brasil 
ER  -