- Correspondence to Dr Stuart Oultram, Department of Health Services Research, Institute of Psychology, Health, and Society, University of Liverpool, The Waterhouse Building, Brownlow Street, Liverpool L69 3GL, UK;
- Accepted March 18, 2013
- First published April 12, 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.