1. Department of Gastroenterology and Hepatology Osaka University Graduate School of Medicine Suita Japan
2. Department of Gastroenterology and Hepatology Osaka General Medical Center Osaka Japan
3. Department of Gastrointestinal Oncology Osaka International Cancer Center Osaka Japan
4. Department of Gastroenterology Toyonaka Municipal Hospital Toyonaka Japan
5. Department of Gastroenterology and Hepatology National Hospital Organization Osaka National Hospital Osaka Japan
6. Department of Gastroenterology Kaizuka City Hospital Kaizuka Japan
7. Department of Gastroenterology Itami City Hospital Itami Japan
8. Department of Gastroenterology Kansai Rosai Hospital Amagasaki Japan
9. Department of Gastroenterology Japan Community Healthcare Organization Osaka Hospital Osaka Japan
10. Department of Gastroenterology Sumitomo Hospital Osaka Japan
11. Department of Gastroenterology Otemae Hospital Osaka Japan
12. Osaka Gut Forum Osaka Japan