1. Division of Clinical Radiology, Tottori University Hospital
2. Department of Radiological Technology, Faculty of Health and Welfare, Tokushima Bunri University
3. Center for Radiology and Radiation Oncology, Kobe University Hospital
4. Department of Radiological Technology, School of Health Sciences, Gifu University of Medical Science
5. Department of Radiology, Kurashiki Medical Center
6. Department of Radiological Technology, Okayama Saiseikai General Hospital
7. Prefectural University of Hiroshima, Graduate School of Comprehensive Scientific Research