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Shoji Hirasaki
Department of Internal Medicine, Kousei Hospital, Japan Division of Gastroenterology, Sumitomo Besshi Hospital, Japan
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Norio Koide
Department of Internal Medicine, Kousei Hospital, Japan
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Seiyuu Suzuki
Division of Gastroenterology, Sumitomo Besshi Hospital, Japan
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Kyoichirou Nishina
Department of Internal Medicine, Kousei Hospital, Japan