1. Pediatric Rheumatology Unit, Department of Pediatrics Hospital das Clinicas, School of Medicine, Univ. of São Paulo, São Paulo, BR
2. Dentistry Division, Hospital das Clínicas, School of Medicine, University of São Paulo, São Paulo, Brazil
3. Pediatric Rheumatology Unit, Department of Pediatrics Hospital das Clinicas, School of Medicine, Univ. of São Paulo, São Paulo, BR,