| Affiliation: | 1. Division of Gastroenterology and Hepatology, Shinmatsudo Central General Hospital, , Matsudo, Japan;2. Institute of Clinical Medicine and Research, Jikei University School of Medicine, , Kashiwa, Japan;3. Division of Gastroenterology, Department of Internal Medicine, Nippon Medical School Chiba Hokusoh Hospital, , Chiba, Japan;4. Division of Gastroenterology and Hepatology, Department of Internal Medicine, Jikei University School of Medicine Katsushika Medical Center, , Tokyo, Japan;5. Division of Gastroenterology, Department of Medicine, Kurume University School of Medicine, , Kurume, Japan;6. Department of Hepatology, Kagawa Prefectural Central Hospital, , Takamatsu, Japan;7. Department of Gastroenterology, Tokyo Metropolitan Bokutoh Hospital, , Tokyo, Japan;8. Department of Gastroenterology, Ogaki Municipal Hospital, , Ogaki, Japan;9. Department of Gastroenterology, Machida Municipal Hospital, , Tokyo, Japan;10. Division of Gastroenterology, Department of Internal Medicine, Nippon Medical School, , Tokyo, Japan |
