[1] Kochi Med Sch, Dept Clin Epidemiol, Nanko Ku, Kochi, Japan
[2] Okayama Univ, Grad Sch Med Dent & Pharmaceut Sci, Dept Nephrol Rheumatol Endocrinol & Metab, Okayama, Japan
[3] Yokohama City Univ, Grad Sch Med, Dept Stem Cell & Immune Regulat, Yokohama, Kanagawa, Japan
[4] Shinshu Univ, Sch Med, Dept Med, Neurol & Rheumatol, Matsumoto, Nagano, Japan
[5] Yokohama City Univ, Med Ctr, Ctr Rheumat Dis, Yokohama, Kanagawa, Japan
[6] Saitama Med Univ, Fac Med, Dept Rheumatol & Appl Immunol, Saitama, Japan
[7] Nagasaki Univ, Grad Sch Biomed Sci, Div Adv Prevent Med Sci, Dept Immunol & Rheumatol, Nagasaki, Japan
[8] Fukushima Med Univ, Sch Med, Dept Rheumatol, Fukushima, Japan
[9] Yokohama Rosai Hosp, Dept Rheumatol, Yokohama, Kanagawa, Japan
[10] Showa Univ, Sch Med, Dept Med, Div Rheumatol, Tokyo, Japan
[11] Fukushima Med Univ, Ctr Innovat Res Communities & Clin Excellence, Fukushima, Japan
[12] Kyoto Univ, Grad Sch Med, Sch Publ Hlth, Dept Healthcare Epidemiol, Kyoto, Japan