Toshiyuki MatsuiDepartment of Gastroenterology, Fukuoka University Chikushi HospitalChikushino, Fukuoka, JapanAkinori IwashitaDepartment of Pathology, Fukuoka University Chikushi HospitalChikushino, Fukuoka, JapanTakayuki MatsumotoDepartment of Internal MedicineIwate Medical UniversityYahaba, Iwate, JapanTakashi HisabeDepartment of Gastroenterology, Fukuoka University Chikushi HospitalChikushino, Fukuoka, JapanKitaro FutamiDepartment of Surgery, Fukuoka University Chikushi HospitalChikushino, Fukuoka, JapanHiroshi TanabeDepartment of Pathology, Fukuoka University Chikushi HospitalChikushino, Fukuoka, Japan