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Yuta Amagasaki
Department of Internal Medicine, Mito Kyodo General Hospital, University of Tsukuba, Japan
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Kazuya Nagasaki
Department of Internal Medicine, Mito Kyodo General Hospital, University of Tsukuba, Japan
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Kenta Okada
Department of Gastroenterology, Mito Kyodo General Hospital, University of Tsukuba, Japan
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Junya Kashimura
Department of Gastroenterology, Mito Kyodo General Hospital, University of Tsukuba, Japan