Comparison of electrohydraulic and electromagnetic extracorporeal shock wave lithotriptors for upper urinary tract stones in a single center. - Lee, Chih-Chiao; Lin, Wun-Rong; Hsu, Jong-Ming; Chow, Yung-Chiong; Tsai, Wei-Kung; Chiang, Pai-Kai; Chen, Marcelo; Chiu, Allen W. (World Journal of Urology, 2019)