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Hidejiro Kawahara
Department of Surgery, Kameari Hospital Department of Surgery, Jikei University school of medecine
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Shoriki Hino
Department of Surgery, Kameari Hospital Department of Endoscopy, Jikei University school of medecine
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Hirotoshi Ishikawa
Department of Surgery, Kameari Hospital
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Katsuhiko Yanaga
Department of Surgery, Jikei University school of medecine
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Hisao Tajiri
Department of Endoscopy, Jikei University school of medecine