1. Department of Surgery; Graduate School of Medicine, Tohoku University; Sendai Japan
2. Department of Pathology; Graduate School of Medicine, Tohoku University; Sendai Japan
3. Department of Molecular Diagnostic Pathology; Iwate Medical University School of Medicine; Iwate Japan
4. Department of Human Pathology; Juntendo University School of Medicine; Tokyo Japan
5. Department of Pathology; Yokohama City University Medical Center; Yokohama Japan
6. Department of Pathology; Toranomon Hospital; Tokyo Japan
7. Division of Pathology; National Cancer Center Hospital East; Kashiwa Japan
8. Department of Pathology; Kagoshima University Hospital; Kagoshima Japan
9. Division of Molecular and Diagnostic Pathology; Shiga University of Medical Science; Otsu Japan
10. Department of Pathology and Clinical Laboratories; Komaki City Hospital; Komaki Japan
11. Department of Diagnostic Pathology; Chiba University Graduate School of Medicine; Chiba Japan
12. Department of Pathology; Handa City Hospital; Handa Japan
13. Department of Pathology; Kokuho Asahi General Hospital; Asahi Japan
14. Department of Pathology and Bioscience; Hirosaki University Graduate School of Medicine; Aomori Japan
15. Department of Pathology; Yamagata University School of Medicine; Yamagata Japan
16. Department of Oncologic Pathology; Mie University Graduate School of Medicine; Tsu Japan
17. Department of Pathology; National Hospital Organization, Mito Medical Center; Ibaraki-machi Japan
18. Department of Pathology; Tohoku Medical and Pharmaceutical University; Sendai Japan
19. Department of Pathology and Laboratory Medicine; National Hospital Organization, Sendai Medical Center; Sendai Japan
20. Department of Pathology; Sendai Open Hospital; Sendai Japan