1. Department of Endoscopy and Endoscopic Surgery, Graduate School of Medicine, The University of Tokyo
2. Second Department of Internal Medicine, Osaka Medical College
3. Division of Endoscopy, Hokkaido University Hospital
4. Department of Internal Medicine II, Faculty of Medicine, Shimane University
5. Department of Internal Medicine & Gastrointestinal Endoscopy, Saga Medical School
6. Department of Gastroenterology, Osaka City University Graduate School of Medicine
7. Clinical Development, Japan/Asia Clinical Research Product Creation Unit, Eisai Product Creation Systems, Eisai Co., Ltd.
8. Clinical Research Institute and Cerebrovascular Medicine, National Hospital Organization, Kyushu Medical Center
9. Department of Cardiovascular Medicine, Graduate School of Medical Sciences, Kumamoto University
10. National Cerebral and Cardiovascular Center
11. Department of Internal Medicine, Saga Medical School