- Correspondence to Dr Carolyn Johnston, Faculty of Life Sciences & Medicine, School of Medical Education, King's College London, 4.18 Shepherd's House, Guy's Campus, London SE1 1UL, UK;
- Received 20 February 2015
- Accepted 18 June 2015
- Published online 15 July 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.