- Correspondence to: Dr Martin J Barron Department of Neurology, School of Neurology, Neurobiology and Psychiatry, University of Newcastle Upon Tyne, Newcastle Upon Tyne NE2 4HH, UK;
- Accepted 26 June 2003
- Published online 21 January 2004.
If you wish to reuse any or all of this article please use the link below which will take you to the Copyright Clearance Center’s RightsLink service. You will be able to get a quick price and instant permission to reuse the content in many different ways.