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Michiro Otaka
Department of Internal Medicine & Gastroenterology, Akita University School of Medicine
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Masaru Odashima
Department of Internal Medicine & Gastroenterology, Akita University School of Medicine
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Daisuke Watanabe
Department of Internal Medicine & Gastroenterology, Akita University School of Medicine
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Ken-ichiro Mikami
Department of Internal Medicine & Gastroenterology, Akita University School of Medicine
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Sumio Watanabe
Department of Internal Medicine & Gastroenterology, Akita University School of Medicine