1. Follow‐up Survey Committee, Liver Cancer Study Group of Japan
2. Department of Gastroenterology and Hepatology Kindai University Faculty of Medicine Osaka‐Sayama Japan
3. Department of Gastroenterology Musashino Red Cross Hospital Tokyo Japan
4. Department of Hepato‐Biliary‐Pancreatic Surgery Osaka City University Graduate School of Medicine Osaka Japan
5. National Center for Global Health and Medicine Tokyo Japan
6. Department of Pathology Keio University School of Medicine Tokyo Japan
7. Department of Gastroenterology Juntendo University School of Medicine Tokyo Japan
8. Department of Gastroenterology Graduate School of Medicine, The University of Tokyo Tokyo Japan
9. Department of Clinical Laboratory Medicine Kurume University Hospital Kurume Japan
10. Department of Diagnostic and Interventional Radiology Kobe University Graduate School of Medicine Kobe Japan
11. Department of Biostatistics, School of Public Health University of Tokyo Tokyo Japan
12. National Clinical Database Tokyo Japan
13. Department of Healthcare Quality Assessment, Graduate School of Medicine The University of Tokyo Tokyo Japan
14. Department of Digestive Surgery Nihon University School of Medicine Tokyo Japan