- Correspondence to: Professor Ley Sander Department of Clinical and Experimental Epilepsy, UCL Institute of Neurology, National Hospital for Neurology and Neurosurgery, Queen Square, London WC1N 3BG, UK;
- Received September 6, 2006
- Accepted October 16, 2006
- Revised October 12, 2006
- First published March 16, 2007.
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