1. Department of Urology, Toyama City Hospital, 2-1 Imaizumihokubu-cho, Toyama, Toyama 939-8511, Japan
2. Department of Internal Medicine, Toyama City Hospital, 2-1 Imaizumihokubu-cho, Toyama, Toyama 939-8511, Japan
3. Department of Pathology, Toyama City Hospital, 2-1 Imaizumihokubu-cho, Toyama, Toyama 939-8511, Japan