[1] Hospital Santa Maria,Pediatric Rheumatology Unit
[2] Centro Hospitalar Universitário Lisboa Norte,Faculdade de Medicina
[3] Unidade de Investigação Em ReumatologiaInstituto de Medicina Molecular,Young Adult and Pediatric Rheumatology Unit
[4] Universidade de Lisboa,Rheumatology Department
[5] Lisbon Academic Medical Center,Rheumatology Department
[6] Centre for Chronic Diseases (CEDOC),Rheumatology Department
[7] Nova Medical School,Rheumatology Department
[8] Comprehensive Health Research Centre,Rheumatology Department
[9] Nova Medical School,Rheumatology Department
[10] Centro Hospitalar Universitário São João,Rheumatoloy Department
[11] University of Medicine of Porto University,Rheumatoloy Department
[12] Centro Hospitalar E Universitário de Coimbra,undefined
[13] Unidade Local de Saúde Do Alto Minho,undefined
[14] Hospital Garcia de Orta,undefined
[15] Instituto Português de Reumatologia,undefined
[16] Hospital Do Divino Espírito Santo,undefined
[17] Centro Hospitalar de Lisboa Ocidental,undefined
[18] Centro Hospitalar Universitário Do Algarve,undefined
[19] Faro Unit,undefined
[20] Centro Hospitalar Do Baixo Vouga,undefined
[21] Hospital Central Do Funchal,undefined