[1] UCL Queen Sq Inst Neurol, Dept Clin & Expt Epilepsy, London WC1N 3BG, England
[2] Chalfont Ctr Epilepsy, Gerrards Cross SL9 0RJ, England
[3] Univ Maiduguri, Teaching Hosp, Dept Med, Neurol Unit, PMB 1414, Maiduguri, Borno State, Nigeria
[4] Sichuan Univ, West China Hosp, Dept Neurol, Chengdu, Sichuan, Peoples R China
[5] Epilepsy Soc, Magnet Resonance Imaging Unit, Gerrards Cross, England
[6] CHUM, Hop Notre Dame, Montreal, PQ H2L 4M1, Canada
[7] SEIN, Achterweg 5, NL-2103 SW Heemstede, Netherlands
[8] Natl Hosp Neurol & Neurosurg, Dept Neurosurg, Queen Sq, London, England
[9] Univ Oslo, Inst Hlth & Soc, Ctr Global Hlth, Kirkeveien 166, N-0450 Oslo, Norway
[10] Tech Univ Munich, Dept Neurol, Ctr Global Hlth, Ismaninger Str 22, D-81675 Munich, Germany