1. Department of Urology, Nara Medical University, Kashihara, Nara, Japan
2. Department of Diagnostic Pathology, Nara Medical University, Kashihara, Nara, Japan
3. Division of Fostering Required Medical Human Resources, Center for Infectious Disease Education and Research (CiDER), Osaka University, Osaka, Japan
4. Department of Prostate Brachytherapy, Nara Medical University, Kashihara, Nara, Japan