[1] Yamaguchi University Graduate School of Medicine,Department of Gastroenterological, Breast and Endocrine Surgery
[2] Yamaguchi University School of Medicine,Department of Translational Research and Developmental Therapeutics Against Cancer
[3] Kawasaki Medical School,Department of Clinical Oncology
[4] Hiroshima City Hiroshima Citizens Hospital,Department of Medical Oncology
[5] Kochi Health Sciences Center,Department of Medical Oncology
[6] Hiroshima Prefectural Hospital,Division of Clinical Oncology
[7] Kochi Medical School Hospital,Cancer Treatment Center
[8] Onomichi General Hospital,Surgery and Endoscopic Surgery
[9] Fukuda Clinic of Internal Medicine,Department of Surgery
[10] Heart and Digestive,Department of Surgery
[11] Kokura Memorial Hospital,Department of Surgery
[12] Japanese Red Cross Yamaguchi Hospital,Department of Surgery
[13] National Hospital Organization Higashihiroshima Medical Center,Department of Gastroenterological Surgery
[14] Okayama University Graduate School of Medicine,Cancer Biostatistics Laboratory, Clinical Research Institute
[15] Dentistry and Pharmaceutical Sciences,Department of Surgery
[16] National Kyushu Cancer Center,undefined
[17] Hiroshima City Hiroshima Citizens Hospital,undefined