TY  - JOUR 
T1  - Urinary calculi composed of uric acid, cystine, and mineral salts: differentiation with dual-energy CT at a radiation dose comparable to that of intravenous pyelography
JO  - International braz j urol
A1  - Prando, Adilson
SN  - 1677-5538
UL  - 10.1590/S1677-55382011000100020
VL  - 37 
Y1  - 2011
PB  - Brasil 
ER  -