1. Department of Community Health and Epidemiology, Queen’s University, Kingston, Ontario, Canada
2. Autism Spectrum Disorders—Canadian-American Research Consortium (ASD-CARC), Kingston, Ontario, Canada
3. Ongwanada Resource Centre, Kingston, Ontario, Canada
4. Department of Psychology, University of Manitoba, Winnipeg, Manitoba, Canada
5. St. Amant Research Centre, Winnipeg, Manitoba, Canada
6. Department of Medical Genetics, University of British Columbia, Vancouver, British Columbia, Canada
7. Department of Pediatrics, University of Calgary, Calgary, Alberta, Canada
8. Department of Community Health Sciences, University of Calgary, Calgary, Alberta, Canada
9. Behavioural Research Unit, Alberta Children’s Hospital, Calgary, Alberta, Canada
10. Department of Health and Community Services, St. John’s, Newfoundland and Labrador, Canada
11. Department of Education, St. John’s, Newfoundland and Labrador, Canada
12. Department of Education and Early Childhood Development, Charlottetown, Prince Edward Island, Canada
13. Department of Psychiatry, Queen’s University, Kingston, Ontario, Canada
14. Department of Physiology, Queen’s University, Kingston, Ontario, Canada