1. Department of Urology, Komaki City Hospital, Komaki, Aichi, Japan
2. Department of Pathology, Nagoya Daini Red Cross Hospital, Nagoya, Japan
3. Department of Urology, Graduate School of Medicine, Nagoya University, Nagoya, Japan
4. Department of Urology, Nagoya Daini Red Cross Hospital, Nagoya, Japan
5. Department of Urology, Chukyo Hospital, Nagoya, Japan
6. Department of Urology, Japanese Red Cross Nagoya Daiichi Hospital, Nagoya, Japan