- Correspondence to Dr Felix Greaves, Centre for Health Policy, Imperial College London, St Mary's Hospital, London W2 1NY, UK;
- Received January 27, 2014
- Revised March 15, 2014
- Accepted March 29, 2014
- First published April 19, 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.