1. Department of Gastroenterology South Miyagi Medical Center Ogawara‐machi Japan
2. Division of Gastroenterology Tohoku University Graduate School of Medicine Sendai Japan
3. Department of Gastroenterology Miyagi Cancer Center Natori Japan
4. Division of Gastroenterology Tohoku Medical and Pharmaceutical University School of Medicine Sendai Japan
5. Department of Gastroenterology Iwate Prefectural Isawa Hospital Ohshu Japan
6. Department of Gastroenterology JR Sendai Hospital Sendai Japan
7. Department of Gastroenterology Osaki Citizen Hospital Osaki Japan
8. Department of Gastroenterology Iwate Prefectural Central Hospital Morioka Japan
9. Department of Gastroenterology Red Cross Ishinomaki Hospital Ishinomaki Japan
10. Department of Gastroenterology, Faculty of Medicine Yamagata University Yamagata Japan
11. Department of Gastroenterology Sendai City Hospital Sendai Japan
12. Department of Gastroenterology Iwate Prefectural Iwai Hospital Ichinoseki Japan
13. Department of Gastroenterology Tohoku Rosai Hospital Sendai Japan
14. Department of Gastroenterology Japanese Red Cross Sendai Hospital Sendai Japan
15. Department of Gastroenterology Obihiro Daiichi Hospital Obihiro Japan
16. Department of Gastroenterology Akita University Graduate School of Medicine Akita Japan
17. Department of Gastroenterology Hachinohe City Hospital Hachinohe Japan
18. Department of Gastroenterology Iwaki City Medical Center Iwaki Japan
19. Department of Gastroenterology Yamagata City Hospital Saiseikan Yamagata Japan
20. Department of Gastroenterology Japan Community Health Care Organization Sendai Hospital Sendai Japan
21. Department of Gastroenterology Iwate Prefectural Chubu Hospital Kitakami Japan
22. Department of Gastroenterology Kesennuma City Hospital Kesennuma Japan
23. Bio Education Laboratory Osaka Japan
24. Faculty of Data Science Kyoto Women's University Kyoto Japan
25. Department of Preventive Medicine and Epidemiology, Tohoku Medical Megabank Organization Tohoku University Sendai Japan