[1] Univ Toronto, Sunnybrook Hlth Sci Ctr & amp, Dept Med, Div Neurol, Toronto, ON, Canada
[2] Univ Ottawa, Ottawa Gen Hosp & amp, Dept Med, Div Neurol, Ottawa, ON, Canada
[3] Inst Nacl Neurol & Neurocirugia Manuel Velasco Sua, Stroke Clin, Mexico City, Mexico
[4] Inst Nacl Ciencias Med & Nutr Salvador Zubiran, Dept Neurol & Psychiat, Stroke Clin, Mexico City, Mexico