[1] McGill Univ, Dept Pediat & Neurol, Montreal, PQ, Canada
[2] McGill Univ, Dept Neurosurg, Montreal, PQ, Canada
[3] Univ Calgary, Cumming Sch Med, Dept Clin Neurosci, Calgary, AB, Canada
[4] Univ Calgary, Cumming Sch Med, Dept Psychiat, Calgary, AB, Canada
[5] Univ Calgary, Cumming Sch Med, Dept Pediat, Calgary, AB, Canada
[6] Univ Calgary, Cumming Sch Med, Dept Community Hlth Sci, Calgary, AB, Canada
[7] Childrens Hosp, Sch Med, Div Neurol, Chicago, IL USA
[8] Childrens Hosp Philadelphia, Div Neurol, Philadelphia, PA USA
[9] Charleston Area Med Ctr, Div Neurol, Charleston, WV USA
[10] Cincinnati Childrens Hosp Med Ctr, Cincinnati, OH USA
[11] Anthony Hosp Centura Hlth, Dept Neurosci & Spine, Lakewood, CO USA
[12] Akron Childrens Hosp, Div Neurol, NeuroDev Sci Ctr, Rochester, MN USA
[13] Akron Childrens Hosp, St Paul, MN USA
[14] Childrens Hosp Colorado, Div Neurol, Aurora, CO USA
[15] Mayo Clin, Dept Neurol, Rochester, MN USA