[1] Kanagawa Cancer Center,Department of Gastrointestinal Surgery
[2] Keio University School of Medicine,Department of Surgery
[3] Shikoku Cancer Center,Department of Surgery
[4] Osaka Medical Center for Cancer and Cardiovascular Diseases,Department of Surgery
[5] Aichi Cancer Center,Department of Gastroenterological Surgery
[6] Mie University Graduate School of Medicine,Department of Innovative Surgery
[7] Cancer Institute Ariake Hospital,Department of Surgery
[8] Osaka University Graduate School of Medicine,Department of Gastroenterological Surgery