[1] Nimes Univ Hosp, Rheumatol Dept, Nimes, France
[2] Montpellier 1 Univ, EA 2415, Montpellier, France
[3] Nimes Univ Hosp, BESPIM, Nimes, France
[4] UPMC Univ Paris 06, Sorbonne Univ, Inst Pierre Louis Epidimiol & Sante Publ, GRC 08, Paris, France
[5] Hop La Pitie Salpetriere, Rheumatol Dept, Paris, France