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

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