Japanese Red Cross Otsu Hospital, Keiyukai Sapporo Hospital, Hyogo Medical University, National Cancer Center Hospital, National Cancer Center Hospital, Hyogo Cancer Center, Aichi Cancer Center, Japanese Red Cross Osaka Hospital, National Cancer Center Hospital, National Cancer Center Hospital - Endoscopy Division, Osaka Metropolitan University, Fukushima Medical University, Hiroshima City North Medical Center Asa Citizens Hospital, Hiroshima University - Hiroshima University Hospital, Shizuoka Cancer Center, Kanazawa Medical Association, Yamagata Prefectural Central Hospital, Hyogo Medical University, Kyoto University Graduate School of Medicine, Shizuoka General Hospital, Niigata Cancer Center Hospital, National Cancer Center Hospital, National Cancer Center Hospital East - Department of Gastroenterology and Endoscopy and Kyoto University - Department of Therapeutic Oncology

Osaka International Cancer Institute - Department of Gastrointestinal Oncology, Kobe City Medical Center General Hospital, Kyoto Second Red Cross Hospital - Department of Gastroenterology, Shizuoka Cancer Center, Kurashiki Central Hospital, Osaka Metropolitan University, Osaka International Cancer Institute, Ishikawa Prefectural Central Hospital, Hirosaki General Medical Center, Kansai Rosai Hospital, Tokyo Metropolitan Bokutoh Hospital, Japanese Red Cross Society, Aomori Prefectural Central Hospital, Sano Hospital, Tokushima University, Okayama University, Suita Municipal Hospital - Department of Gastroenterology and Hepatology, Sapporo Medical University, Keio University, Japan Institute for Health Security, University of Miyazaki, Tochigi Cancer Centre, Tonan Hospital, Fukushima Medical University, Nara City Hospital, Naha City Hospital, Sapporo City General Hospital, National Hospital Organization (NHO) - Hakodate National Hospital, Yokohama City University, Toyonaka Municipal Hospital, Osaka Rosai Hospital, National Hospital Organization Osaka National Hospital, Sapporo Medical University, Junpukai Health Maintenance Center Kurashiki, Kyoto Prefectural University of Medicine - Department of Molecular-Targeting Prevention, University of Tokyo and Gunma University