1. Department of Medicine Teikyo University School of Medicine Tokyo Japan
2. Clinical Research Center National Hospital Organization (NHO) Nagasaki Medical Center Nagasaki Japan
3. Department of Gastroenterology and Metabology Ehime University Graduate School of Medicine Ehime Japan
4. Department of Gastroenterology Tokyo Teishin Hospital Tokyo Japan
5. Department of Gastroenterology and Hepatology Faculty of Medicine Saitama Medical University Saitama Japan
6. Third Department of Internal Medicine Nara Medical University Nara Japan
7. Hepatology Division Department of Internal Medicine Hamamatsu University School of Medicine Hamamatsu Japan
8. Division of Gastroenterology Tohoku University Graduate School of Medicine Sendai Japan
9. Department of Hepatology Graduate School of Medicine Osaka City University Osaka Japan
10. Department of Gastroenterology Fukushima Medical University School of Medicine Fukushima Japan
11. Center for Gastroenterology Teine Keijinkai Hospital Sapporo Japan
12. Department of Gastroenterology and Hepatology Niigata University Graduate School of Medical and Dental Sciences Niigata Japan
13. Department of Gastroenterology Faculty of Medicine Oita University Yufu City Japan
14. Division of Hepatology and Gastroenterology Department of Medicine Shinshu University School of Medicine Matsumoto Japan
15. Department of Gastroenterology and Hepatology Gunma University Graduate School of Medicine Maebashi Japan
16. Department of Gastroenterology and Hepatology Musashino Red Cross Hospital Tokyo Japan
17. Department of Gastroenterology and Neurology Kagawa University School of Medicine Kagawa Japan
18. Division of Hepatology Department of Internal Medicine Iwate Medical University Morioka Japan
19. Department of Gastroenterology Minoh City Hospital Osaka Japan
20. The Fourth Department of Internal Medicine Teikyo University Mizonokuchi Hospital Tokyo Japan
21. Division of Gastroenterology and Hepatology Department of Internal Medicine Tokyo Medical University Ibaraki Medical Center Ibaraki Japan
22. Faculty of Medical Technology Teikyo University Tokyo Japan