1. Department of Diagnostic Radiology, Chang Gung Memorial Hospital at Kaohsiung, Chang Gung College of Medicine and Technology, Kaohsiung Hsien, Taiwan
2. Urological Section, Department of Surgery, Chang Gung Memorial Hospital at Kaohsiung, Chang Gung College of Medicine and Technology, Kaohsiung Hsien, Taiwan
3. Department of Pathology, Chang Gung Memorial Hospital at Kaohsiung, Chang Gung College of Medicine and Technology, Kaohsiung Hsien, Taiwan