[1] Ctr Educ Med & Invest Clin Norberto Quirno CEMIC, Rheumatol & Immunol Unit, Galvan 4102, RA-1431 Buenos Aires, DF, Argentina
[2] Hosp Fernandez, Med Interna, Buenos Aires, DF, Argentina
[3] Hosp Cordoba, Rheumatol, Cordoba, Argentina
[4] OMI, Rheumatol, Buenos Aires, DF, Argentina
[5] Hosp JM Cullen, Rheumatol, Santa Fe, Argentina
[6] Inst Invest Med Alfredo Lanari, Immunol, Buenos Aires, DF, Argentina
[7] Hosp Gen Agudos Bernardino Rivadavia, Rheumatol, Buenos Aires, DF, Argentina
[8] Hosp Reg Ramon Carrillo Santiago del Estero, Rheumatol, Santiago Del Estero, Argentina
[9] Hosp Penna, Rheumatol, Buenos Aires, DF, Argentina
[10] Hosp Ricardo Gutierrez, La Plata, Buenos Aires, Argentina
[11] Hosp Britanico Buenos Aires, Rheumatol, Buenos Aires, DF, Argentina
[12] Hosp Italiano Buenos Aires, Rheumatol, Buenos Aires, DF, Argentina