[1] CHU Marseille, AP HM, Marseille, France
[2] CHU Toulouse, Toulouse, France
[3] Univ Glasgow, Glasgow, Lanark, Scotland
[4] Aix Marseille Univ, Dept Rheumatol, CHU Marseille, F-13000 Marseille, France
[5] CHU Bordeaux, Toulouse, France
[6] Univ Paul Sabatier Toulouse III, INSERM, Toulouse Univ Hosp, Rheumatol Unit,UMR 1027, Toulouse, France