1 Department of Urology, Chang Gung Memorial Hospital, Linkou, Taiwan; School of Medicine, Chang Gung University, TaoYuan 333, Taiwan. Electronic address: laserep@cgu.edu.tw.
2 Department of Urology, Chang Gung Memorial Hospital, Linkou, Taiwan; School of Medicine, Chang Gung University, TaoYuan 333, Taiwan.
3 School of Medicine, Chang Gung University, TaoYuan 333, Taiwan; Department of Family Medicine, Chang-Gung Memorial Hospital, Linkou, Taiwan.