- Correspondence to Dr C D J Sinclair, Box 65, National Hospital for Neurology and Neurosurgery, Queen Square, London WC1N 3BG, UK;
- Received March 8, 2010
- Revised June 18, 2010
- Accepted July 28, 2010
- First published October 22, 2010.
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.