[1] Hosp Italiano Buenos Aires, Inst Univ Hosp Italiano Buenos Aires, Internal Med Serv, Rheumatol Unit, Buenos Aires, DF, Argentina
[2] Fdn PM Catoggio, Buenos Aires, DF, Argentina
[3] St Vincents Univ Hosp, Dept Rheumatol, Rheumatol, Dublin 4, Ireland
[4] St Vincents Univ Hosp, Dublin Acad Med Ctr, Rheumatol, Dublin, Ireland
[5] St Vincents Univ Hosp, Dept Rheumatol, Dublin, Ireland
[6] St Vincents Univ Hosp, Dept Rheumatol, Bone & Joint Unit, Dublin, Ireland
[7] Univ Coll Dublin, St Vincents Univ Hosp, Dept Rheumatol, Conway Inst Biomol & Biomed Res, Dublin, Ireland