1. Department of Respiratory Medicine, Kanagawa Cardiovascular and Respiratory Center, Japan
2. Department of Radiology, Kanagawa Cardiovascular and Respiratory Center, Japan
3. Department of Pathology, Yokohama City University Graduate School of Medicine, Japan
4. Department of Pathology, Japanese Red Cross Medical Center, Japan
5. Biomedical Imaging Research Center, University of Fukui, Japan
6. Division of Rheumatology, Department of Internal Medicine, Tokai University School of Medicine, Japan