- Correspondence to: S M Sisodiya Department of Clinical and Experimental Epilepsy, National Hospital for Neurology and Neurosurgery, Box 29, Queen Square, London WC1N 3BG, UK;
- Received 1 November 2006
- Accepted 4 January 2007
- Revised 30 December 2006
- Published online 5 June 2007.
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