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Shigetaka YAMAMOTO
Department of Surgery, Osaka Prefectural General Hospital
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Yasuhiro TANAKA
Department of Surgery, Osaka Prefectural General Hospital
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Toshinori ITO
Department of Surgery, Osaka University Graduate School of Medicine
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Takeyoshi YUMIBA
Department of Surgery, Osaka University Graduate School of Medicine
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Kazuhiro IWASE
Department of Surgery, Osaka Prefectural General Hospital
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Tohru KITAGAWA
Department of Surgery, Osaka University Graduate School of Medicine