| Affiliation: | 1. Pediatric Rheumatology Unit, Faculdade de Medicina da Universidade de S?o Paulo (FMUSP), S?o Paulo city, S?o Paulo ‐ Brazil;2. Pediatric Rheumatology Unit, Universidade Federal de S?o Paulo (UNIFESP), S?o Paulo city, S?o Paulo ‐ Brazil;3. Division of Rheumatology, FMUSP, S?o Paulo city, S?o Paulo ‐ Brazil;4. S?o Paulo State University (UNESP), Faculdade de Medicina de Botucatu, Botucatu, S?o Paulo ‐ Brazil;5. Irmandade da Santa Casa de Misericórdia de S?o Paulo, S?o Paulo city, S?o Paulo ‐ Brazil;6. Rheumatology Unit, Faculty of Medical Sciences, State University of Campinas, Campinas, S?o Paulo ‐ Brazil;7. Ribeir?o Preto Medical School, University of S?o Paulo, Ribeir?o Preto, S?o Paulo ‐ Brazil |
