1. Endoscopy Division National Cancer Center Hospital TokyoJapan
2. Department of Gastroenterology and MetabolismHiroshima University Hospital HiroshimaJapan
3. Department of EndoscopyThe TokyoJapan
4. Digestive Disease Center Showa University Northern Yokohama Hospital KanagawaJapan
5. Department of Internal Medicine Kuniyoshi Hospital KochiJapan
6. Coloproctology Center Matsushima Hospital KanagawaJapan
7. Department of Gastroenterology Kawasaki Saiwai Hospital KanagawaJapan
8. Department of Coloproctology Tsujinaka Hospital Kashiwanoha ChibaJapan
9. Gastroenterology Division Tokatsu‐Tsujinaka Hospital ChibaJapan
10. Department of Endoscopy Hiroshima University Hospital HiroshimaJapan
11. Department of Gastrointestinal Oncology Osaka International Cancer Institute OsakaJapan
12. Departments of Gastroenterology and Hepatology Osaka General Hospital of West Japan Railway Company OsakaJapan
13. Department of Gastroenterology and Hepatology Tokyo Medical University TokyoJapan
14. Department of Gastroenterology and Hepatology Gunma University Graduate School of Medicine Gunma Japan
15. Nihon Pharmaceutical Co., Ltd. TokyoJapan
16. Center for Diagnostic and Therapeutic Endoscopy Keio University School of Medicine TokyoJapan
17. Research and Development Center for New Medical Frontiers Kitasato University School of Medicine KanagawaJapan
18. Department of Gastroenterology The Cancer Institute Hospital of Japanese Foundation for Cancer Research Tokyo Japan
19. Department of Innovative Interventional Endoscopy Research The Jikei University School of Medicine TokyoJapan