1. Department of Urology, Osaka University Graduate School of Medicine, Suita, Japan.
2. Department of Urology, Kindai University Faculty of Medicine, Osakasayama, Japan.
3. Department of Genome Biology, Kindai University Faculty of Medicine, Osakasayama, Japan.
4. Department of Urology, Juntendo University Urayasu Hospital, Urayasu, Japan.