| Affiliation: | 1. Department of Gastroenterology and Hepatology, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama, Japan;2. Department of Internal Medicine, Fukuyama City Hospital, Fukuyama, Japan;3. Department of Gastroenterology, Iwakuni Clinical Center, Iwakuni, Japan;4. Department of Gastroenterology, Mitoyo General Hospital, Kanonji, Japan;5. Department of Internal Medicine, Okayama Saiseikai General Hospital, Okayama, Japan;6. Department of Gastroenterology, Japanese Red Cross Okayama Hospital, Okayama, Japan;7. Department of Internal Medicine, Hiroshima City Hiroshima Citizens Hospital, Hiroshima, Japan;8. Department of Gastroenterology, Kagawa Prefectural Central Hospital, Takamatsu, Japan;9. Department of Internal Medicine, Japanese Red Cross Society Himeji Hospital, Himeji, Japan;10. Department of Internal Medicine, Sumitomo Besshi Hospital, Niihama, Japan;11. Department of Gastroenterology, Onomichi Municipal Hospital, Onomichi, Japan |
