1. Division of Rheumatology, Department of Internal Medicine, Keio University School of Medicine, Tokyo, Japan
2. Inflammation and Immunology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
3. Department of Public Health, Graduate School of Medical Sciences, Nagoya City University, Nagoya, Japan
4. Department of Health Informatics, Kyoto University School of Public Health, Kyoto, Japan
5. The First Department of Internal Medicine, School of Medicine, University of Occupational and Environmental Health, Kitakyushu, Japan
6. Department of Clinical Immunology and Rheumatology, Hiroshima University Hospital, Hiroshima, Japan
7. Immuno-Rheumatology Center, St Luke’s International Hospital, Tokyo Japan
8. Division of Rheumatology, Department of Internal Medicine, School of Medicine, Toho University Tokyo, Tokyo, Japan
9. Institute of Rheumatology, Tokyo Women’s Medical University, Tokyo, Japan
10. Department of Orthopaedic Surgery, Kyoto University Graduate School of Medicine, Kyoto, Japan
11. Department of Orthopaedic Surgery, Dentistry and Pharmaceutical Sciences, Okayama University Graduate School of Medicine, Okayama, Japan
12. Department of Orthopaedic Surgery Faculty of Medicine, University of Toyama, Toyama, Japan
13. Department of Orthopedic Surgery, Nagoya University Hospital, Nagoya, Japan
14. Faculty of Health Sciences, Tokyo Ariake University of Medical and Health Sciences, Tokyo, Japan
15. Department of Drug Policy and Management, Graduate School of Pharmaceutical Sciences, The University of Tokyo, Tokyo, Japan
16. The Japan Rheumatism Friendship Association, Japan
17. Tokyo Medical and Dental University, Tokyo, Japan