- Correspondence to Dr Alexander Shah, Department of Neurology, Derriford Hospital, Plymouth Hospitals NHS Trust, Plymouth PL68DH, UK;
- Accepted June 20, 2015
- First published July 22, 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.