[1] Ctr Univ Brasilia, Med Sch, Brasilia, DF, Brazil
[2] Univ Sao Paulo, Fac Med, Med Sch, Sao Paulo, SP, Brazil
[3] Univ Fed Amazonas, Sch Med, Manaus, Amazonas, Brazil
[4] Univ Fed Rio Janeiro, Sch Med, Rio De Janeiro, Brazil
[5] Univ Brasilia, Med Sch, Brasilia, DF, Brazil
[6] Fac Med Barretos, Med Sch, Barretos, Brazil
[7] Univ Fed Paraiba, Med Sch, Joao Pessoa, Paraiba, Brazil
[8] Univ Fed Pernambuco, Sch Med, Recife, PE, Brazil
[9] Univ Fed Juir Fora, Med Sch, Juiz De Fora, Brazil
[10] Univ Fed Minas Gerais, Sch Med, Belo Horizonte, MG, Brazil
[11] Hosp Geral Fortcdeza, Rhemnatol Dept, Fortaleza, Ceara, Brazil
[12] Hosp Univ Evangel Mackenzie, Rhenmatol Dept, Curitiba, Parana, Brazil
[13] Univ Estado Rio De Janeiro, Med School, Rio De Janeiro, Brazil
[14] Irmandale Santa Casa Misericordia Sao Paulo, Rheumatol Dept, Sao Paulo, Brazil
[15] Univ Fed Parana, Med Sch, Curitiba, Parana, Brazil
[16] Univ Fed Sao Paulo, Med Sch, Sao Paulo, Brazil
[17] Pontificia Univ Catolica Campinas, Med Sch, Campinas, SP, Brazil
[18] Univ Fed Minas Gerais, Psychol Sch, Belo Horizonte, MG, Brazil
[19] Hosp Serv Publ Estadual Sao Paulo, Dept Rheumatol, Sao Paulo, Brazil
[20] Univ Fed Rio Grande Do Norte, Med Sch, Natal, RN, Brazil