1. Department of Urology, Saitama Medical Center, Saitama Medical University, Saitama, Japan
2. Department of Digestive Tract and General Surgery, Saitama Medical Center, Saitama Medical University, Saitama, Japan
3. Diagnostics and Therapeutics of Intractable Diseases, Intractable Disease Research Center, Graduate School of Medicine, Juntendo University, Tokyo, Japan
4. Division of Molecular Diagnosis and Cancer Prevention, Saitama Cancer Center, Saitama, Japan
5. Department of Pathology, Saitama Medical Center, Saitama Medical University, Saitama, Japan
6. Department of Pathology, Tokyo Metropolitan Geriatric Hospital and Institute of Gerontology, Tokyo, Japan
7. Department of Surgery, Tokyo Metropolitan Cancer and Infectious Diseases Center Komagome Hospital, Tokyo, Japan