1. Division of Diagnostic Pathology; Keio University School of Medicine; Tokyo Japan
2. Department of Urology; Keio University School of Medicine; Tokyo Japan
3. Department of Urology; Saiseikai Tobu Hospital; Yokohama Japan
4. Department of Diagnostic Pathology; Kochi Red Cross Hospital; Kochi Japan
5. Department of Surgical Pathology; Tokyo Women's Medical University; Tokyo Japan
6. Tohto College of Health Science; Saitama Japan
7. Department of Pathophysiology for Locomotive and Neoplastic Diseases; Juntendo University Graduate School of Medicine Tokyo; Japan