TY  - JOUR 
T1  - Editorial Comment: Classification of the renal papillary abnormalities by flexible ureteroscopy: evaluation of the 2016 version and update
JO  - International braz j urol
A1  - Danilovic, Alexandre
SN  - 1677-5538
UL  - 10.1590/S1677-5538.IBJU.2021.06.04
VL  - 47 
Y1  - 2021
PB  - Brasil 
ER  -