1. Department of Rheumatology; National Hospital Organization Yokohama Medical Center; Yokohama Japan
2. Department of Rheumatology; Japanese Red Cross Shizuoka Hospital; Shizuoka Japan
3. Department of Respiratory Medicine; National Hospital Organization Yokohama Medical Center; Yokohama Japan
4. Department of Cardiology; National Hospital Organization Yokohama Medical Center; Yokohama Japan
5. Department of Cardiology; Saiseikai Kurihashi Hospital; Kuki Japan
6. Department of Pathology; National Hospital Organization Yokohama Medical Center; Yokohama Japan
7. Department of Radiology; National Hospital Organization Yokohama Medical Center; Yokohama Japan
8. Department of Internal Medicine and Clinical Immunology; Yokohama City University Graduate School of Medicine; Yokohama Japan