[1] Univ Sao Paulo, Fac Med, Hosp Clin HCFMUSP, Pediat Rheumatul Unit,Childrens Inst, Av Dr Eneas Carvalho Aguiar 647, BR-05403000 Sao Paulo, SP, Brazil
[2] Hosp Jose Alencar, Pediat Rheumatol Unit, Brasilia, DF, Brazil
[3] Univ Sao Paulo, Hosp Clin HCFMUSP, Fac Med, Div Rheumatol, Sao Paulo, Brazil
[4] Univ Fed Sao Paulo, Pediat Rheumatol Unit, Sao Paulo, Brazil
[5] Sao Paulo State Univ UNESP, Pediat Rheumatol Div, Botucatu, SP, Brazil
[6] Univ Estadual Campinas, Pediat Rheumatol Unit, UNICAMP, Campinas, SP, Brazil
[7] Univ Sao Paulo, Ribeirao Preto Med Sch, Pediat Rheumatol Unit, Ribeirao Preto, Brazil
[8] Hosp Geral Fortaleza, Pediat Rheumatol Unit, Fortaleza, Ceara, Brazil
[9] Rio de Janeiro Fed Univ IPPMG UFRJ, Pediat Rheumatol Unit, Rio De Janeiro, Brazil
[10] Pedro Ernesto Univ Hosp, Pediat Rheumatol Unit, Rio De Janeiro, Brazil
[11] Albert Sabin Childrens Hosp, Pediat Rheumatol Unit, Fortaleza, Ceara, Brazil
[12] Hosp Darcy Vargas, Pediat Rheumatol Unit, Sao Paulo, Brazil
[13] Irmandade Santa Casa de Misericordia Sao Paulo, Sao Paulo, Brazil
[14] Univ Fed Rio de Janeiro, Rheumatol Div, Hosp Univ Clementino Fraga Filho, Rio De Janeiro, Brazil
[15] Lauro Vanderley Univ Hosp, Pediat Rheumatol Unit, Joao Pessoa, Paraiba, Brazil
[16] Fed Univ Para, Pediat Rheumatol Unit, Belem, Para, Brazil
[17] Obras Sociais Irma Dulce, Pediat Rheumatol Unit, Salvador, BA, Brazil
[18] Hosp Evangel Curitiba, Pediat Rheumatol Unit, Curitiba, Parana, Brazil
[19] Hosp Crianca Conceicao, Pediat Rheumatol Unit, Porto Alegre, RS, Brazil
[20] Univ Fed Pernambuco, Pediat Rheumatol Unit, Recife, PE, Brazil
[21] Univ Fed Mato Grosso do Sul, Pediat Rheumatol Unit, Campo Grande, Brazil
[22] Univ Fed Bahia, Pediat Rheumatol Unit, Salvador, BA, Brazil
[23] Univ Brasilia, Pediat Rheumatol Unit, Brasilia, DF, Brazil
[24] Univ Fed Minas Gerais, Pediat Rheumatol Unit, Belo Horizonte, MG, Brazil
[25] Pontificia Catholic Univ Sorocaba, Pediat Rheumatol Unit, Sao Paulo, Brazil