[1
]
Department of Surgery, Osaka Prefectural General Medical Centre, Osaka, Japan.
[2
]
Department of Surgery, Seoul National University College of Medicine, Seoul, South
Korea.
[3
]
Japan Clinical Oncology Group Data Centre/Operations Office, National Cancer Centre,
Tokyo, Japan.
[4
]
Department of Surgery, National Cancer Centre, Seoul, South Korea.
[5
]
Department of Gastric Surgery, Shizuoka Cancer Centre, Shizuoka, Japan.
[6
]
Department of Surgery, Ajou University School of Medicine, Suwon, South Korea.
[7
]
Department of Surgery, Tokyo Metropolitan Komagome Hospital, Tokyo, Japan.
[8
]
Department of Surgery, Yonsei University College of Medicine, Seoul, South Korea.
[9
]
Department of Surgery, Hakodate Goryokaku Hospital, Hakodate, Japan.
[10
]
Department of Surgery, Kanagawa Cancer Centre, Yokohama, Japan.
[11
]
Medical Research Collaborating Centre, Seoul National University College of Medicine,
Seoul, South Korea.
[12
]
Department of Surgery, The Catholic University of Korea, Seoul St Mary's Hospital,
Seoul, South Korea.
[13
]
Department of Gastrointestinal Surgery, Osaka University Graduate School of Medicine,
Osaka, Japan.
[14
]
Department of Internal Medicine, Seoul National University College of Medicine, Seoul,
South Korea.
[15
]
Department of Surgery, Hyogo College of Medicine, Nishinomiya, Japan.
[16
]
Department of Surgery, Kaizuka City Hospital, Osaka, Japan. Electronic address: tsujinaka@hosp.kaizuka.osaka.jp.