- Correspondence to Professor Neil J Scolding, University of Bristol Institute of Clinical Neurosciences, Department of Neurology, Frenchay Hospital, Bristol BS16 1LE, UK;
- Received 24 February 2010
- Accepted 24 February 2010
- Published in print 1 August 2010.
- Published online 3 August 2010.
- Published first 22 June 2010.
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