1. Research and Training Center for Asbestos-Related Diseases Okayama, Japan
2. Department of Radiology, Kawasaki General Medical Center, Japan
3. Department of Clinical Oncology, Nagasaki University Hospital, Japan
4. Department of Radiology, St. Luke’s International Hospital, Japan
5. Department of Internal Medicine, Saiseikai Chuwa Hospital, Japan
6. Department of Diagnostic Radiology, Saitama Medical University, Japan