[1] Univ Glasgow, Western Infirm, Epilepsy Unit, Glasgow G11 6NT, Lanark, Scotland
[2] Comprehens Epilepsy Care Ctr Children & Adults, St Louis, MO USA
[3] Comprehens Epilepsy Ctr, New York, NY USA
[4] St Peters Univ Hosp, New Brunswick, NJ USA
[5] Eisai Med Res Inc, Ridgefield Pk, NJ USA