[1] Tokyo Womens Med Univ, Sch Med, Dept Internal Med, Div Multidisciplinary Management Rheumat Dis, Tokyo, Japan
[2] Tokyo Womens Med Univ, Sch Med, Dept Internal Med, Div Rheumatol, Tokyo, Japan
[3] Showa Univ, Res Adm Ctr, Tokyo, Japan
[4] Tokyo Womens Med Univ, Sch Med, Dept Orthoped Surg, Tokyo, Japan
[5] Sanno Med Ctr, Rheumatol, Tokyo, Japan