[1] Holland Bloorview Kids Rehabil Hosp, Bloorview Res Inst, Autism Res Ctr, Toronto, ON, Canada
[2] Univ Toronto, Dept Paediat, Toronto, ON, Canada
[3] Dalhousie Univ, Dept Pediat, Halifax, NS, Canada
[4] Dalhousie Univ, Dept Psychol & Neurosci, Halifax, NS, Canada
[5] IWK Hlth Ctr, Autism Res Ctr, Halifax, NS, Canada
[6] Univ Alberta, Dept Pediat, Edmonton, AB, Canada
[7] Glenrose Rehabil Hosp, Autism Res Ctr, Edmonton, AB, Canada
[8] Hosp Sick Children, Autism Res Unit, Toronto, ON, Canada
[9] Integrated Serv Autism & Neurodevel Disorders, Toronto, ON, Canada