1. Department of Internal Medicine, Division of Rheumatology, Faculty of Medicine, Toho University, Tokyo, Japan;
2. Department of Rheumatology and Clinical Immunology, Wakayama Medical University, Wakayama, Japan;
3. Department of Rheumatology, Center for Rheumatic Diseases, Mie University Graduate School of Medicine, Mie, Japan;
4. Medical Innovation Promotion Center, Clinical Research Center of Medical Hospital, Tokyo Medical and Dental University, Tokyo, Japan;
5. Sagawa Akira Rheumatology Clinic, Hokkaido, Japan;
6. Department of Kuranomachi Community Medicine, Regional Clinical Education Center, Jichi Medical University, Tochigi, Japan;
7. Department of Orthopaedic Biomaterial Science, Graduate School of Medicine, Osaka University, Osaka, Japan;
8. Division of Epidemiology and Pharmacoepidemiology of Rheumatic Diseases, Institute of Rheumatology, Tokyo Women’s Medical University, Tokyo, Japan;
9. Department of Internal Medicine, Division of Rheumatology, Tokai University School of Medicine, Kanagawa, Japan