- Correspondence to Dr Mark Roberts, Greater Manchester Neurosciences Centre, Salford Royal NHS Foundation Trust, Manchester Academic Health Science Centre, Salford M6 8HD, UK;
- Accepted 27 September 2017
- Published online 16 January 2018.
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.