- Correspondence to Dr Richard Weiler, University College London Hospitals NHS Foundation Trust,235 Euston Road, London NW1 2BU, UK;
- Accepted February 25, 2014
- First published March 25, 2014.
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.