[1] Leiden Univ, Med Ctr, Dept Rheumatol, Leiden, Netherlands
[2] Leiden Univ, Med Ctr, Rheumatol, Leiden, Netherlands
[3] Haga Hosp, The Hague, Netherlands
[4] Groene Hart Hosp, Rheumatol, Gouda, Netherlands
[5] Franciscus Hosp, Dept Rheumatol, Roosendaal, Netherlands
[6] Reinier de Graaf Gasthuis, Rheumatol, Delft, Netherlands
[7] Bronovo Hosp, Rheumatol, The Hague, Netherlands
[8] MCH Antoniushove Hosp, Rheumatol, Leidschendam, Netherlands
[9] ADRZ, Rheumatol, Goes, Netherlands
[10] Zorgsaam, Rheumatol, Terneuzen, Netherlands
[11] Leiden Univ, Med Ctr, Leiden, Netherlands