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Takeaki SHIMIZU
Department of Surgery, Shinrakuen Hospital
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Shigeru HASEGAWA
First Department of Surgery, Niigata University, School of Medicine
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Osamu SATO
First Department of Surgery, Niigata University, School of Medicine
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Yoshiaki TSUCHIYA
First Department of Surgery, Niigata University, School of Medicine
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Kazuhiro TSUKADA
First Department of Surgery, Niigata University, School of Medicine
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Keisuke YOSHIDA
First Department of Surgery, Niigata University, School of Medicine