| Affiliation: | 1. Department of Hepatobiliary and Pancreatic Oncology, Osaka Medical Center for Cancer and Cardiovascular Diseases, Osaka, Japan;2. Department of Gastroenterology and Hepatology, Osaka University Graduate School of Medicine, Suita, Japan;3. Department of Gastroenterology and Hepatology, Osaka General Medical Center, Osaka, Japan;4. Department of Gastroenterology, Ikeda Municipal Hospital, Ikeda, Japan;5. Department of Internal Medicine, Osaka Police Hospital, Osaka, Japan;6. Department of Gastroenterology, Higashiosaka City Central Hospital, Higashiosaka, Japan;7. Department of Gastroenterology, National Hospital Organization Osaka National Hospital, Osaka, Japan;8. Department of Gastroenterology, Yao Municipal Hospital, Yao, Japan;9. Department of Gastroenterology, Sumitomo Hospital, Osaka, Japan;10. Department of Gastroenterology, National Hospital Organization Osaka Minami Medical Center, Kawachinagano, Japan;11. Department of Gastroenterology, Toyonaka Municipal Hospital, Toyonaka, Japan;12. Department of Gastroenterology, Otemae Hospital, Osaka, Japan;13. Department of Gastroenterology, Saiseikai Senri Hospital, Suita, Japan;14. Department of Gastroenterology, NTT West Osaka Hospital, Osaka, Japan;15. Department of Surgery, Osaka Medical Center for Cancer and Cardiovascular Diseases, Osaka, Japan;16. Center for Cancer Control and Statistics, Osaka Medical Center for Cancer and Cardiovascular Diseases, Osaka, Japan;17. Department of Gastroenterology, Kansai Rousai Hospital, Amagasaki, Japan |
