1. Center for RA and Autoimmune Diseases, Nagahama City Hospital, Shiga, Japan
2. Division of Gastroenterology and Hepatology, The Third Department of Internal Medicine, Kansai Medical University, Osaka, Japan;
3. Faculty of Dentistry, Matsumoto Dental University, Nagano, Japan;
4. Department of Rheumatology and Clinical Immunolog, Sapporo Medical University, School of Medicine, Sapporo, Japan;
5. Department of Ophthalmology, Tokyo Medical University, Tokyo, Japan;
6. Health Administration Center,University of Toyama, Toyama, Japan;
7. Japan Department of Cardiology, Osaka Medical College, Osaka, Japan;
8. Department of Rheumatology and Clinical Immunology,Wakayama Medical University, Wakayama, Japan;
9. Division of Pathophysiology, Okayama University Graduate School of Health Sciences, Okayama, Japan;
10. Department of Rheumatology, Graduate School of Medical Science, Kanazawa University, Ishikawa, Japan