1. The First Department of Internal Medicine, University of Occupational and Environmental Health Japan, Fukuoka, Japan
2. Toho University, Tokyo, Japan
3. Tobata General Hospital, Fukuoka, Japan
4. Division of Rheumatology Department of Internal Medicine, Keio University School of Medicine, Tokyo, Japan
5. Institute of Rheumatology, Tokyo Women’s Medical University Hospital, Tokyo, Japan
6. Department of Rheumatology, Endocrinology, and Nephrology, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Hokkaido, Japan
7. Department of Internal Medicine and Rheumatology, Juntedo University School of Medicine, Tokyo, Japan
8. Department of Allergy and Rheumatology, The University of Tokyo, Tokyo, Japan
9. Department of Rheumatology and Clinical Immunology, Wakayama Medical University, Wakayama, Japan
10. Department of Orthopaedics/Rheumatology, Nagoya University Graduate School of Medicine, Aichi, Japan
11. EPS Corporation, Tokyo, Japan
12. Tokyo University of Science, Tokyo, Japan
13. Department of Public Health, University of Occupational and Environmental Health Japan, Fukuoka, Japan
14. Department of Rheumatology, Tokyo Medical and Dental University, Tokyo, Japan