[1] Hosp Sick Children, Neurosci & Mental Hlth Program, Toronto, ON, Canada
[2] Hosp Sick Children, Dept Psychol, Toronto, ON, Canada
[3] Hosp Sick Children, Div Neurol, Toronto, ON, Canada
[4] Hosp Sick Children, Dept Diagnost Imaging, Toronto, ON, Canada
[5] Western Univ, Dept Paediat, London, ON, Canada
[6] Western Univ, Dept Epidemiol, London, ON, Canada
[7] Western Univ, Dept Biostat, London, ON, Canada
[8] Univ Waterloo, Sch Publ Hlth & Hlth Syst, Waterloo, ON, Canada
[9] BC Childrens Hosp, Dept Pediat, Div Neurol, Vancouver, BC, Canada
[10] Ste Justine Hosp, Dept Pediat, Div Neurol, Montreal, PQ, Canada
[11] Ste Justine Hosp, Ctr Rech, Montreal, PQ, Canada
[12] McMaster Univ, Dept Pediat, Hamilton, ON, Canada
[13] Royal Univ Hosp, Neurol Div, Dept Pediat, Saskatoon, SK, Canada
[14] Qatif Cent Hosp, Dept Pediat, Neurol Div, Qatif, Saudi Arabia
[15] Univ Western Ontario, London Hlth Sci Ctr, Dept Pediat, London, ON, Canada
[16] Hlth Sci Ctr, Dept Pediat, Winnipeg, MB, Canada
[17] Univ Toronto Mississauga, Dept Psychol, 3359 Mississauga Rd, Mississauga, ON L5L 1C6, Canada