1. Department of Urology, Kaohsiung Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Kaohsiung, Taiwan, Republic of China
2. Institute of Medicine, Chung Shan Medical University, Taiwan, Republic of China
3. Department of Radiology, Kaohsiung Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Kaohsiung, Taiwan, Republic of China
4. Department of Urology, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania
5. Department of Pathology, Kaohsiung Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Kaohsiung, Taiwan, Republic of China