1. Center for Gastroenterology, Teine Keijinkai Hospital, Sapporo 006-8555, Japan
2. Gastroenterology Center, Ehime Prefectural Central Hospital, Matsuyama 790-0024, Japan
3. Department of Internal Medicine, Japanese Red Cross Himeji Hospital, Himeji 670-8540, Japan
4. Department of Gastroenterology and Metabology, Ehime University Graduate School of Medicine, Toon 791-0295, Japan
5. Department of Hepatology, Okayama City Hospital, Okayama 700-0962, Japan
6. Department of Gastroenterology and Hepatology, Kagawa University, Kagawa 761-0795, Japan
7. Division of Gastroenterology and Hepatology, Department of Internal Medicine, Nippon Medical School, Tokyo 113-8603, Japan
8. Department of Hepatology, Kagawa Prefectural Central Hospital, Takamatsu 760-8557, Japan
9. Department of Gastroenterology, Asahi General Hospital, Asahi 289-2511, Japan
10. Department of Gastroenterology, Osaka Medical and Pharmaceutical University, Osaka 569-8686, Japan
11. Department of Gastroenterology, Saiseikai Niigata Hospital, Niigata 950-1104, Japan
12. Department of Gastroenterology, Toyama University Hospital, Toyama 930-0194, Japan
13. Center for Liver-Biliary-Pancreatic Disease, Matsuyama Red Cross Hospital, Matsuyama 790-8524, Japan
14. Department of Gastroenterology and Hepatology, Ogaki Municipal Hospital, Ogaki 503-8502, Japan
15. Department of Gastroenterology, Japanese Red Cross Takamatsu Hospital, Takamatsu 760-0017, Japan
16. Department of Gastroenterology and Hepatology, Hyogo Medical University, Nishinomiya 663-8501, Japan
17. Department of Gastroenterology, Gunma Saiseikai Maebashi Hospital, Maebashi 371-0821, Japan
18. Department of Clinical Research, National Hospital Organization Takasaki General Medical Center, Takasaki 370-0829, Japan
19. Division of Gastroenterology and Hepatology, Otakanomori Hospital, Kashiwa 277-0863, Japan
20. Hepatology Division, Department of Internal Medicine II, Hamamatsu University School of Medicine, Hamamatsu 565-0871, Japan
21. Department of Gastroenterology, National Hospital Organization Takasaki General Medical Center, Takasaki 370-0829, Japan
22. Department of Surgery, Kansai Medical University, Hirakata 573-1010, Japan
23. Department of Hepatology, St. Mary’s Hospital, Himeji 670-0801, Japan
24. Division of Hepatology, Department of Internal Medicine, School of Medicine, Iwate Medical University, Morioka 020-8505, Japan
25. Department of Gastroenterology, Hanwa Memorial Hospital, Osaka 558-0041, Japan
26. Department of Nursing, Gifu Kyoritsu University, Ogaki 503-8550, Japan