1. Division of Medicine and Clinical Science, Department of Multidisciplinary Internal Medicine, Faculty of Medicine, Tottori University, Japan
2. Irisawa Medical Clinic, Japan
3. Division of Radiology, Department of Pathophysiological and Therapeutic Science, School of Medicine, Tottori University Faculty of Medicine, Japan
4. Division of Clinical Radiology, Tottori University Hospital, Japan
5. Department of Gastroenterology and Hepatology, Nagasaki University Graduate School of Biological Sciences, Japan
6. Department of Internal Medicine, Hino Hospital, Japan