- Correspondence to Dr Annapoorna Kuppuswamy, Sobell Department of Motor Neuroscience, Institute of Neurology, UCL Box 146, 4th floor, Clinical Neurosciences building, 33, Queen Square, London WC1N 3BG, UK;
- Received January 22, 2015
- Revised February 26, 2015
- Accepted March 23, 2015
- First published April 17, 2015.
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.