- Dr K Talbot, Department of Clinical Neurology, West Wing Level 3, John Radcliffe Hospital, Oxford OX3 9DU, UK;
- Published in print 1 February 2009.
- Published online 16 January 2009.
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.