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 Gastroenterology Okayama City Hospital Okayama Japan
6. Center of Gastroenterology Teine Keijinkai Hospital Sapporo Japan
7. Department of Gastroenterology Saiseikai Niigata Hospital Niigata Japan
8. Department of Gastroenterology and Hepatology Ogaki Municipal Hospital Japan
9. Department of Gastroenterology National Hospital Organization Takasaki General Medical Center Takasaki Japan
10. Department of Internal Medicine Japanese Red Cross Himeji Hospital Himeji Japan
11. Department of Hepatology Kagawa Prefectural Central Hospital Takamatsu Japan
12. Department of Gastroenterology Asahi General Hospital Asahi Japan
13. Division of Gastroenterology and Hepatology Otakanomori Hospital Kashiwa Japan
14. Department of Gastroenterology Tokushima Prefectural Central Hospital Tokushima Japan
15. Department of Surgery Kansai Medical University Hirakata Japan
16. Department of Nursing Gifu Kyoritsu University Japan