1. Department of Gastroenterology Gunma Saiseikai Maebashi Hospital Maebashi Japan
2. Department of Clinical Research National Hospital Organization Takasaki General Medical Center Takasaki Japan
3. Department of Gastroenterology and Hepatology Gunma University Graduate School of Medicine Maebashi Japan
4. Gastroenterology Center Ehime Prefectural Central Hospital Matsuyama Japan
5. Department of Internal Medicine Japanese Red Cross Himeji Hospital Himeji Japan
6. Department of Gastroenterology and Metabology Ehime University Graduate School of Medicine Ehime Japan
7. Department of Gastroenterology Okayama City Hospital Okayama Japan
8. Department of Gastroenterology and Hepatology Kagawa University Kagawa Japan
9. Division of Gastroenterology and Hepatology, Department of Internal Medicine Nippon Medical School Tokyo Japan
10. Department of Hepatology Kagawa Prefectural Central Hospital Takamatsu Japan
11. Department of Gastroenterology Asahi General Hospital Asahi Japan
12. Premier Departmental Research of Medicine Osaka Medical and Pharmaceutical University Osaka Japan
13. Center of Gastroenterology Teine Keijinkai Hospital Sapporo Japan
14. Department of Gastroenterology Saiseikai Niigata Hospital Niigata Japan
15. Department of Gastroenterology Toyama University Hospital Toyama Japan
16. Center for Liver‐Biliary‐Pancreatic Disease Matsuyama Red Cross Hospital Matsuyama Japan
17. Department of Gastroenterology and Hepatology Ogaki Municipal Hospital Ogaki Japan
18. Department of Gastroenterology Japanese Red Cross Takamatsu Hospital Takamatsu Japan
19. Department of Internal Medicine, Division of Gastroenterology and Hepatology Hyogo College of Medicine Nishinomiya Japan
20. Division of Gastroenterology and Hepatology Otakanomori Hospital Kashiwa Japan
21. Hepatology Division, Department of Internal Medicine II Hamamatsu University School of Medicine Hamamatsu Japan
22. Department of Surgery Kansai Medical University Hirakata Japan
23. Department of Gastroenterology National Hospital Organization Takasaki General Medical Center Takasaki Japan
24. Department of Nursing Gifu Kyoritsu University Ogaki Japan