[1] Aalborg Univ, Dept Hlth Sci & Technol, Aalborg, Denmark
[2] Odense Univ Hosp, Dept Clin Immunol, DK-5000 Odense, Denmark
[3] Odense Univ Hosp, Dept Pathol, DK-5000 Odense, Denmark
[4] Univ Toulouse III Paul Sabatier, Inst Math Toulouse, Toulouse, France
[5] Odense Univ Hosp, Dept Rheumatol, Rheumatol Res Unit, Odense, Denmark
[6] Odense Univ Hosp, Sect Rheumatol, Dept Med, Svendborg, Denmark