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Kaku Kuroda
Department of Internal Medicine, Okinawa Chubu Hospital, Japan
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Moriya Zakimi
Department of Gastroenterology, Okinawa Chubu Hospital, Japan
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Kazuhito Hirata
Department of Internal Medicine, Okinawa Chubu Hospital, Japan
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Kaoru Kikuchi
Department of Gastroenterology, Okinawa Chubu Hospital, Japan