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Naoki Asayama
Department of Gastroenterology, Hiroshima City North Medical Center Asa Citizens Hospital, Japan
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Masahiro Yamane
Department of Gastroenterology, Hiroshima City North Medical Center Asa Citizens Hospital, Japan
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Mayumi Kaneko
Department of Anatomical Pathology, Hiroshima City North Medical Center Asa Citizens Hospital, Japan
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Shinji Nagata
Department of Gastroenterology, Hiroshima City North Medical Center Asa Citizens Hospital, Japan