To undertake a systematic review and meta-analysis of placebo controlled add-on trials of levetiracetam, oxcarbazepine, remacemide and zonisamide for patients with drug resistant localization related epilepsy.
Department of Neurological Science, Clinical Sciences Centre for Research and Education, University of Liverpool, Lower Lane, Fazakerley, Liverpool L9 7LJ, UK. a.g.marson@liv.ac.uk