1. Division of Rheumatology, Department of Medicine, Showa University School of Medicine, Tokyo, Japan;
2. Department of Healthcare Epidemiology, Kyoto University Graduate School of Medicine and Public Health, Kyoto, Japan;
3. Center for Innovative Research for Communities and Clinical Excellence, Fukushima Medical University, Fukushima, Japan;
4. Department of Nephrology and Dialysis, Kyoritsu Hospital, Kawanishi, Japan;
5. Human Health Sciences, Kyoto University Graduate School of Medicine, Kyoto, Japan;
6. Department of Nephrology, Rheumatology, Endocrinology and Metabolism, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan;
7. Department of Hygiene and Preventive Medicine, Fukushima Medical University, Fukushima, Japan;
8. Department of Dermatology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan;
9. Shirakawa Satellite for Teaching And Research in General Medicine, Fukushima Medical University, Shirakawa, Japan;
10. Division of Rheumatology, Toho University, Tokyo, Japan;
11. Department of Allergy and Rheumatology, Nippon Medical School, Tokyo, Japan;
12. Department of Rheumatology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan;
13. Department of Obstetrics and Gynecology, Nagoya City University, Graduate School of Medical Sciences, Nagoya, Japan;
14. Division of Rheumatology, Department of Internal Medicine, Keio University School of Medicine, Tokyo, Japan;
15. The First Department of Internal Medicine, University of Occupational and Environmental Health, Japan, Kitakyushu, Japan;
16. Department of Internal Medicine and Rheumatology, Juntendo University Faculty of Medicine, Tokyo, Japan;
17. Department of Lifetime Clinical Immunology Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan;
18. Department of Rheumatology, Clinical Research Center for Allergy and Rheumatology, National Hospital Organization Sagamihara Hospital, Sagamihara, Japan;
19. Department of Rheumatology and Clinical Immunology, Kyoto University Graduate School of Medicine, Kyoto, Japan;
20. Department of Rheumatology, Endocrinology and Nephrology, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Japan