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Nobuhiko Okamoto
Department of Surgery, Ageo Central General Hospital, Ageo, Japan.
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Takeyuki Misawa
Department of Surgery The Jikei University Kashiwa Hospital Chiba Japan.
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Gen Shimada
Department of Gastrointestinal Surgery and Hernia Center, St. Luke's International Hospital, Tokyo, Japan.
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Takuya Saito
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Shuji Takiguchi
Department of Gastroenterological Surgery, Osaka University Graduate School of Medicine, Osaka, Japan.
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Kiyotaka Imamura
Department of Surgery, Teine Keijinkai Medical Center, Sapporo, Japan.
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Masakazu Ohuchi
Department of Surgery, Juntendo University Urayasu Hospital, Urayasu, Japan.
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Tsukasa Tanida
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Ikuo Watanobe
Department of General Surgery, Juntendo University Nerima Hospital, Tokyo, Japan.
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Tsutomu Fujii
Department of Surgery and Science, Faculty of Medicine Academic Assembly, University of Toyama Toyama Japan.
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Ichiro Takemasa
Department of Gastroenterological Surgery, Osaka University Graduate School of Medicine, Suita City, Osaka, Japan.
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Fumitoshi Mizutani
Department of Surgery, Nagoya Ekisaikai Hospital, Nagoya, Japan.
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Taketo Matsubara
Department of Gastrointestinal Surgery and Hernia Center, St. Luke's International Hospital, Tokyo, Japan.
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Shunsuke Hayakawa
Department of Gastroenterological Surgery, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan.
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Toru Watanabe
Department of Surgery and Science, Faculty of Medicine Academic Assembly, University of Toyama Toyama Japan.
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Koichi Okuya
Department of Surgery, Surgical Oncology and Science, Sapporo Medical University, Sapporo, Japan.
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Hideki Takahashi
Department of Surgery, Teikyo University School of Medicine, Tokyo, Japan.
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Masahiro Horikawa
Department of Surgery, Teikyo University School of Medicine, Tokyo, Japan.
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Go Wakabayashi
Department of Surgery, Ageo Central General Hospital, Saitama, Japan.