Department of Emergency and Disaster Medicine,Gifu University,1-1 Yanagido,501-1194,Gifu City,Japan;
Department of Radiology,Gifu University,1-1 Yanagido,501-1194,Gifu City,Japan;
Department of Gastroenterology,Gifu University,1-1 Yanagido,501-1194,Gifu City,Japan;
Department of Surgical Oncology,Gifu University,1-1 Yanagido,501-1194,Gifu City,Japan;
Department of Surgery,Misao Hospital,Yotsuyachou,500-8088,Gifu City,Japan;