1. Department of Pharmacovigilance,
2. Department of Medicine and Rheumatology, Graduate School of Medical and Dental Sciences, Tokyo Medical Dental University, Bunkyo-ku, Tokyo, Japan,
3. Department of Nephrology, Rheumatology, Endocrinology and Metabolism, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Kita-ku, Okayama, Japan,
4. Centor for Rheumatology, Okayama Saiseikai Hospital, Kita-ku, Okayama, Japan,
5. Department of the Control for Rheumatic Diseases, Graduate School of Medicine, Kyoto University, Kyoto, Japan,
6. Division of Hematology, Rheumatology and Respiratory Medicine, Department of Internal Medicine, Faculty of Medicine, Kagawa University, Kida-gun, Kagawa, Japan,
7. Department of Rheumatology and Clinical Immunology, Saitama Medical Center, Saitama Medical University, Kawagoe, Saitama, Japan,
8. Department of Internal Medicine, Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki, Japan,
9. Department of Respiratory Medicine, Toho University Omori Medical Center, Ota-ku, Tokyo, Japan,
10. Department of Clinical Pathology and Immunology, Graduate School of Medicine, Kobe University, Kobe, Hyogo, Japan,
11. Division of Rheumatology and Nephrology, Aichi Medical University School of Medicine, Nagakute, Aichi, Japan,
12. Nephrology and Rheumatology, First Department of Internal Medicine, Kyorin University School of Medicine, Mitaka, Tokyo, Japan, and
13. Okayama University Hospital, Kita-ku, Okayama, Japan