[1] Kanazawa Medical University,Department of Gastroenterological Endoscopy
[2] The University of Tokyo,Department of Gastroenterology, Graduate School of Medicine
[3] The University of Tokyo Hospital,Department of Endoscopy and Endoscopic Surgery
[4] The Cancer Institute Hospital of Japanese Foundation for Cancer Research,Department of Hepato
[5] Saitama Medical University,Biliary
[6] Shizuoka Cancer Center,Pancreatic Medicine
[7] National Cancer Center Japan,Department of Gastroenterology and Hepatology, Saitama Medical Center
[8] Hyogo Medical University,Division of Endoscopy
[9] Kindai University,Department of Hepatobiliary and Pancreatic Oncology
[10] Gifu University Hospital,Division of Gastroenterology and Hepatobiliary and Pancreatic Diseases, Department of Internal Medicine
[11] Kobe University Graduate School of Medicine,Department of Gastroenterology and Hepatology, Faculty of Medicine
[12] Juntendo University,First Department of Internal Medicine
[13] University of Toyama,Division of Gastroenterology, Department of Internal Medicine