[1] Japanese Red Cross Med Ctr, Dept Allergy & Rheumatol, Shibuya Ku, Tokyo 1508935, Japan
[2] Tokyo Med Univ Hosp, Dept Rheumatol, Tokyo, Japan
[3] Munakata Med Assoc Hosp, Fukuoka, Japan
[4] Natl Hosp Org, Div Clin Immunol & Allergy, Osaka Minami Med Ctr, Osaka, Japan
[5] Saitama Med Univ, Div Clin Immunol & Rheumatol, Saitama Med Ctr, Saitama, Japan
[6] Kagoshima Red Cross Hosp, Ctr Rheumat Dis, Kagoshima, Japan
[7] Japanese Red Cross Med Ctr, Dept Pathol, Tokyo 1508935, Japan
[8] Sagawa Akira Rheumatol Clin, Sapporo, Hokkaido, Japan