1. Department of Gastroenterology Ogaki Municipal Hospital Ogaki Japan
2. Gastroenterology Center Ehime Prefectural Central Hospital Matsuyama Japan
3. Department of Gastroenterology, Internal Medicine Kitasato University School of Medicine Sagamihara Japan
4. Gastroenterology Center Yokohama City University Medical Center Yokohama Japan
5. Division of Gastroenterology and Hepatology Department of Internal Medicine Otakanomori Hospital Kashiwa Japan
6. Department of Hepatology Kagawa Prefectural Central Hospital Takamatsu Japan
7. Division of Gastroenterology and Hepatology Department of Internal Medicine Shinmatusdo Central General Hospital Matsudo Japan
8. Division of Gastroenterology and Hepatology Department of Internal Medicine Nippon Medical School Tokyo Japan
9. Department of Virology and Liver Unit Graduate School of Medical Sciences Nagoya City University Nagoya Japan
10. Department of Hepatology Saiseikai Niigata Hospital Niigata Japan
11. Division of Gastroenterology Department of Internal Medicine Kikkoman General Hospital Noda Japan
12. Department of Internal Medicine St. Marianna University School of Medicine Kawasaki Japan
13. Department of Gastroenterology Asahi General Hospital Asahi Japan
14. Center for Gastroenterology Teine Keijinkai Hospital Sapporo Japan
15. Division of Gastroenterology Department of Internal Medicine Nippon Medical School Chiba Hokuso Hospital Inzai Japan
16. Department of Nursing Gifu Kyoritsu University Ogaki Japan
17. Department of Epidemiology Infectious Disease Control, and Prevention Hiroshima University Institute of Biomedical and Health Sciences Hiroshima Japan