[1] CREAR, GO, Rosario, Argentina
[2] Hosp Clin Barcelona, Serv Reumatol, Barcelona, Spain
[3] Univ Nacl Rosario, Escuela Estadist, Fac Ciencias Econ & Estadist, Rosario, Argentina
[4] Hosp Italiano Buenos Aires, Rheumatol Sect, Buenos Aires, DF, Argentina
[5] Hosp Italiano Cordoba, Serv Reumatol, Cordoba, Argentina
[6] Univ Nacl Cordoba, Fac Ciencias Med, Hosp Cordoba, Cordoba, Argentina
[7] Hosp Privado Univ Cordoba, Serv Reumatol, Cordoba, Argentina
[8] HIGA San Martin de La Plata, Serv Reumatol, La Plata, Buenos Aires, Argentina
[9] Sanat Britan, Rheumatol, Rosario, Argentina
[10] Hosp Angel C Padilla, Serv Reumatol, San Miguel De Tucuman, Tucuman, Argentina
[11] Hosp Gen Agudos JM Ramos Mejia, Dept Rheumatol, Buenos Aires, DF, Argentina
[12] Univ Buenos Aires, Dept Inmunol, Inst Invest Med Alfredo Lanari, Buenos Aires, DF, Argentina
[13] Ctr Educ Med & Invest Clin Norberto Quirno CEMIC, Dept Inmunol & Reumatol, Buenos Aires, DF, Argentina
[14] Univ Fed Goias, Hosp Clin, Goiania, Go, Brazil
[15] Univ Fed Rio Grande do Sul, Div Rheumatol, Dept Internal Med, Porto Alegre, RS, Brazil
[16] Univ Fed Pernambuco, Hosp Clin, Ctr Ciencias Med, Serv Reumatol,Dept Med Clin, Recife, PE, Brazil
[17] Univ Estado Rio de Janeiro, Hosp Univ Pedro Ernesto, Div Rheumatol, Rio De Janeiro, Brazil
[18] Univ Sao Paulo, Fac Med, HCFMUSP, Hosp Clin,Rheumatol Div, Sao Paulo, Brazil
[19] Univ Fed Sao Paulo, Escola Paulista Med, Sao Paulo, Brazil
[20] Univ Chile, Hosp Salvador, Serv Reumatol, Santiago, Chile
[21] San Sebastian Univ, Fac Med & Ciencia, Providencia, Chile
[22] Univ Simon Bolivar, Clin Costa, Barranquilla, Colombia
[23] Fdn Valle Lili Hosp, Reumatol, Cali, Colombia
[24] Univ Nacl Colombia, Univ Andes, Fdn Santa Fe Bogota,Sch Med, Univ Hosp,REUMAVANCE Grp,Rheumatol Sect,Dept Inte, Bogota, Colombia
[25] Univ Especialidades Espiritu Santo, Hosp Luis Vernaza, Serv Reumatol, Guayaquil, Ecuador
[26] Ctr Med Nacl La Raza, Hosp Especialidades, Serv Reumatol, Mexico City, DF, Mexico
[27] Ctr Med Nacl Siglo XXI, Dept Reumatol, Mexico City, DF, Mexico
[28] Inst Nacl Ciencias Med & Nutr Salvador Zubiran, Dept Reumatol, Mexico City, DF, Mexico
[29] Inst Nacl Cardiol Ignacio Chavez, Dept Reumatol, Mexico City, DF, Mexico
[30] Univ Guadalajara, Dept Inmunol & Reumatol, Hosp Gen Occidente, Zapopan, Mexico
[31] Univ Autonoma San Luis Potosi, Unidad Reg Reumatol, Hosp Cent Dr Ignacio Morones Prieto, San Luis Potosi, San Luis Potosi, Mexico
[32] Univ Autonoma San Luis Potosi, Unidad Reg Reumatol, Fac Med, San Luis Potosi, San Luis Potosi, Mexico
[33] Univ Autonoma Nuevo Leon, Serv Reumatol, Hosp Univ Dr Jose Eleuterio Gonzalez, Monterrey, Mexico
[34] Hosp Clin I, Reumatol, Asuncion, Paraguay
[35] Univ Nacl Asuncion, Fac Ciencias Med, Dept Reumatol, San Lorenzo, Paraguay
[36] Hosp Nacl Edgardo Rebagliati Martins, Serv Reumatol, Dept Especialidades Med, Jesus Maria, Peru
[37] Univ Cient Sur, Hosp Nacl Guillermo Almenara Irigoyen, EsSalud, Serv Reumatol, La Victoria, Peru
[38] Hosp Nacl Cayetano Heredia, Serv Reumatol, San Martin De Porres, Peru
[39] Hosp Padre Billini, Serv Reumatol, Santo Domingo, Dominican Rep
[40] Univ Republica, Serv Reumatol, Hosp Clin, Fac Med, Montevideo, Uruguay
[41] Hosp Senor Milagro, Serv Reumatol, Salta, Argentina
[42] Univ Republica, Corp Asistencia Med MUCAM, Unidad Enfermedades Autoinmunes Med Uruguaya, Fac Med, Montevideo, Uruguay
[43] Univ Republica, Clin Med, Unidad Enfermedades Autoinmunes Med Uruguaya, Fac Med, Montevideo, Uruguay
[44] Univ Alabama Birmingham, Birmingham, AL USA
[45] Univ Birmingham Sch Med, Dept Med, Div Clin Immunol & Rheumatol, Birmingham, AL USA
[46] Univ Peruana Cayetano Heredia, Dept Med, Sch Med, San Martin De Porres, Peru
[47] Janssen Pharmaceut Co Johnson & Johnson, Rheumatol, Horsham, PA USA
[48] Janssen Pharmaceut Co Johnson & Johnson, Rheumatol, Spring House, PA USA
[49] Janssen Pharmaceut, Rheumatol, Beerse, Belgium