1. Department of Medicine and Bioregulatory Science, Graduate School of Medical Sciences, Kyushu University
2. Department of Surgery and Oncology, Graduate School of Medical Sciences, Kyushu University
3. Department of Anatomic Pathology, Graduate School of Medical Sciences, Kyushu University
4. Department of Clinical Radiology, Graduate School of Medical Sciences, Kyushu University
5. Department of Gastroenterology, Fukuoka-Higashi Medical Center