- Correspondence to Dr Atholl Johnston, Barts and The London School of Medicine and Dentistry, Queen Mary, University of London, Charterhouse Square, London EC1M 6BQ, UK;
- Received November 12, 2012
- Revised July 30, 2013
- Accepted August 1, 2013
- First published August 29, 2013.
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.