1. Department of Urology, Fujisawa City Hospital, 2-6-1 Fujisawa, Fujisawa City, Kanagawa Prefecture, Japan
2. Department of Urology, Yokohama City University School of Medicine, 3-9 Fukuura, Kanazawa Ward, Yokohama City, Kanagawa Prefecture, Japan
3. Department of Pathology, Fujisawa City Hospital, 2-6-1 Fujisawa, Fujisawa City, Kanagawa Prefecture, Japan