Affiliation: | (1) Department of Radiology, Arita Gastrointestinal Hospital, 1-2-6 Maki, Oita 870-0924, Japan;(2) Department of Internal Medicine, Arita Gastrointestinal Hospital, Oita, Japan;(3) Department of Surgery, Arita Gastrointestinal Hospital, Oita, Japan;(4) Department of Radiology, Oita University Faculty of Medicine, Yufu, Japan;(5) Department of Otolaryngology, Oita University Faculty of Medicine, Yufu, Japan |