1. Department of Health Care, Yodogawa Christian Hospital
2. Division of Gastroenterology, Department of Internal Medicine Kobe University Graduate School of Medicine
3. Department of Health Care, Kyoto Second Red Cross Hospital
4. Department of Gastroenterology, Fukui Red Cross Hospital
5. Department of Gastroenterology, Kakogawa Central City Hospital
6. Department of Gastroenterology, Saiseikai Nakatsu Hospital
7. Department of Gastroenterology, Kita-harima Medical Center
8. Hotel Okura Kobe Clinic
9. Center for Clinical Research and Advanced Medicine, Shiga University Medical Science