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Masaya Iwamuro
Department of Gastroenterology and Hepatology, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Japan Department of General Medicine, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Japan
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Takehiro Tanaka
Department of Pathology, Okayama University Hospital, Japan
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Fumio Otsuka
Department of General Medicine, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Japan
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Hiroyuki Okada
Department of Gastroenterology and Hepatology, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Japan Department of Endoscopy, Okayama University Hospital, Japan