[1] Ctr Reg Enfermedades Autoinmunes & Reumat GO CREA, Rosario, Argentina
[2] Hosp Nacl Guillermo Almenara Irigoyen, Lima, Peru
[3] Univ Nacl Rosario, Rosario, Argentina
[4] Hosp Clin Barcelona, Barcelona, Spain
[5] Hosp HIGA San Martin, La Plata, Argentina
[6] Hosp Italiano Buenos Aires, Buenos Aires, Argentina
[7] Univ Cordoba, Hosp Privado, Cordoba, Argentina
[8] Emory Sch Med, Atlanta, GA USA
[9] Univ Fed Goias, Goiania, Go, Brazil
[10] Univ Fed Pernambuco, Recife, Brazil
[11] Univ Sao Paulo, Sao Paulo, Brazil
[12] Univ Fed Sao Paulo, Escola Paulista Med, Sao Paulo, Brazil
[13] Univ Chile, Hosp Salvador, Santiago, Chile
[14] Univ San Sebastian, Fac Med & Ciencia, San Sebastian, Chile
[15] UniverGrp Inmunol Celular & Inmunogenet, Fac Med, Medellin, Colombia
[16] Univ Antioquia, Secc Reumatol, Dept Med Interna, Medellin, Colombia
[17] Ctr Invest Med Quirurg, Div Rheumatol, Havana, Cuba
[18] Inst Nacl Cardiol Ignacio Chavez, Dept Inmunol, Dept Reumatol, Mexico City, Mexico
[19] SS Univ Guadalajara, Hosp Gen Occidente, Guadalajara, Mexico
[20] Hosp Especialidades 25, Rheumatologymex, Inst Mexicano Seguro Social, Monterrey, Mexico
[21] Policlin Mendez Gimon, Servicio Reumatol, Caracas, Venezuela
[22] Univ Alabama, Max Heersink Sch Med, Div Clin Immunol & Rheumatol, Birmingham, England
[23] Janssen Res & Dev, Horsham, PA USA
[24] Janssen Pharmaceut NV, Beerse, Belgium
[25] Janssen Pharmaceut Companies Johnson & Johnson, Horsham, PA USA