1. Pediatric Department, Centro Hospitalar Universitário São João, Porto, Portugal
2. Centre for Health Technology and Services Research (CINTESIS), Porto, Portugal
3. Neurology Department, Centro Hospitalar de Entre Douro e Vouga, Santa Maria da Feira, Portugal
4. Faculty of Medicine, University of Porto, Porto, Portugal
5. EPIUnit - Institute of Public Health, University of Porto, Porto, Portugal
6. Child Psychiatry Department, Centro Hospitalar de Vila Nova de Gaia/Espinho, Vila Nova de Gaia, Portugal
7. PIN - Centro de Desenvolvimento, Porto, Portugal
8. Autism Unit from Child Developmental Center and Centro de Investigação e Formação Clinica, Hospital Pediátrico, Centro Hospitalar e Universitário de Coimbra, Coimbra, Portugal
9. University Clinic of Pediatrics, Faculty of Medicine, University of Coimbra, Coimbra, Portugal
10. Department of Community Medicine, Information and Health Decision Sciences (MEDCIDS), Faculty of Medicine, University of Porto, Porto, Portugal
11. Pediatric Neurology Department, Centro Materno-Infantil, Centro Hospitalar do Porto, Porto, Portugal
12. Instituto de Ciências Biomédicas Abel Salazar, University of Porto, Porto, Portugal