1. Division of Cancer Immunotherapy Exploratory Oncology Research and Clinical Trial Center National Cancer Center Kashiwa Japan
2. Department of Gastroenterological Surgery Yokohama City University Graduate School of Medicine Yokohama Japan
3. Department of Gastroenterology National Cancer Center Hospital East Kashiwa Japan
4. Division of Cancer Immunotherapy Kanagawa Cancer Center Research Institute Yokohama Japan
5. Department of Anatomic Pathology Pathological Science Kyusyu University Graduate School of Medicine Fukuoka Japan