| Affiliation: | 1. Department of Gastroenterology and Hepatology, Osaka University Graduate School of Medicine, Suita, Osaka, Japan;2. Osaka Rosai Hospital, Sakai, Osaka, Japan;3. Osaka Police Hospital, Osaka, Osaka, Japan;4. NTT West Osaka Hospital, Osaka, Osaka, Japan;5. Kansai Rousai Hospital, Amagasaki, Hyogo, Japan;6. National Hospital Organization, Osaka National Hospital, Osaka, Osaka, Japan;7. Japan Community Health Care Organization Osaka Hospital, Osaka, Osaka, Japan;8. Kaizuka City Hospital, Kaizuka, Osaka, Japan;9. Toyonaka Municipal Hospital, Toyonaka, Osaka, Japan;10. Osaka Medical Center for Cancer and Cardiovascular Diseases, Osaka, Osaka, Japan;11. Minoh City Hospital, Minoh, Osaka, Japan;12. Ikeda Municipal Hospital, Ikeda, Osaka, Japan |
