[1] Vivantes Humboldt Klinikum Berlin, Dept Neurol, Stroke Unit, D-13505 Berlin, Germany
[2] Ctr Epilepsy, Berlin, Germany
[3] Univ Fed Sao Paulo UNIFESP, Dept Neurol & Neurosurg, Sao Paulo, Brazil
[4] Med Univ Wien AKH, Univ Klin Psychiat Kindes & Jugendalters, Vienna, Austria
[5] Univ Wisconsin Hosp & Clin, Dept Neurol, Madison, WI 53792 USA
[6] Natl Hosp Neurol & Neurosurg, London WC1N 3BG, England