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Shinya Ushimaru
Department of Gastroenterology, Jichi Medical University, Saitama Medical Center
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Hiroyuki Miyatani
Department of Gastroenterology, Jichi Medical University, Saitama Medical Center
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Hideaki Honda
Department of Gastroenterology, Jichi Medical University, Saitama Medical Center
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Yukio Yoshida
Department of Gastroenterology, Jichi Medical University, Saitama Medical Center