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Tetsuya Okunaka
Department of Surgery, Tokyo Medical College Tokyo, Japan
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Takaaki Tsuchida
Department of Surgery, Tokyo Medical College Tokyo, Japan
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Toshimitsu Hiyoshi
Department of Surgery, Tokyo Medical College Tokyo, Japan
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Masahiko Harada
Department of Surgery, Tokyo Medical College Tokyo, Japan
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Touichirou Katsumi
Department of Surgery, Tokyo Medical College Tokyo, Japan
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Chimori Konaka
Department of Surgery, Tokyo Medical College Tokyo, Japan
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Harubumi Kato
Department of Surgery, Tokyo Medical College Tokyo, Japan