[1] Tokyo Medical and Dental University,Center for Minimally Invasive Surgery
[2] Tokyo Medical and Dental University,Department of Surgical Oncology
[3] Tochigi Cancer Center,Department of Surgery
[4] Toho University,Department of Surgery
[5] National Defense Medical College,Department of Surgery
[6] Sapporo Medical University,First Department of Surgery
[7] Niigata University,Department of Surgery
[8] Tokyo Women’s Medical University,Second Department of Surgery
[9] Aichi Cancer Center,Department of Surgery
[10] Fujita Health University,Department of Surgery
[11] Hirosaki University,Department of Surgery
[12] Osaka Medical Center for Cancer and Cardiovascular Diseases,Department of Surgery
[13] Kurume University,Department of Surgery
[14] Tokyo Metropolitan Cancer and Infectious Diseases Center,Department of Surgery
[15] Komagome Hospital,Department of Surgical Oncology
[16] University of Tokyo,Department of Surgery
[17] National Center for Global Health and Medicine,Department of Surgery
[18] Saitama Cancer Center,Department of Surgery
[19] Teikyo University,undefined