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Shoko Igawa
Department of Gastroenterology, National Hospital Organization Iwakuni Clinical Center, Japan
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Shouichi Tanaka
Department of Gastroenterology, National Hospital Organization Iwakuni Clinical Center, Japan
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Kazuya Miyamoto
Department of Gastroenterology, National Hospital Organization Iwakuni Clinical Center, Japan
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Rie Yamasaki
Department of Pathology, National Hospital Organization Iwakuni Clinical Center, Japan