[1] Univ Fed Minas Gerais, Reumatol, Belo Horizonte, MG, Brazil
[2] Univ Estado Rio de Janeiro, Rheumatol, Rio De Janeiro, Brazil
[3] Univ Brasilia, Rheumatol, Brasilia, DF, Brazil
[4] Univ Sao Paulo, Fac Med, Rheumatol, Sao Paulo, Brazil
[5] Univ Sao Paulo, Rheumatol, Ribeirao Preto, Brazil
[6] Hosp Serv Publ Estadual Sao Paulo, Rheumatol, Sao Paulo, Brazil
[7] Univ Santa Catarina Unisul, Rheumatol, Florianopolis, SC, Brazil
[8] Univ Fed Parana, Rheumatol, Curitiba, Parana, Brazil
[9] Univ Estadual Campinas, Rheumatol, Campinas, Brazil