1. ADHD Outpatient Program Hospital de Clínicas de Porto Alegre Federal University of Rio Grande do Sul Porto Alegre Brazil
2. Neonatology Section Department of Pediatrics Hospital de Clínicas de Porto Alegre Federal University of Rio Grande do Sul Porto Alegre Brazil
3. Department of Child and Adolescent Psychiatry Hospital de Clínicas de Porto Alegre Federal University of Rio Grande do Sul Porto Alegre Brazil
4. National Institute of Developmental Psychiatry for Children and Adolescents São Paulo Brazil