- Correspondence to Nicola Mackintosh, Kings College London, NIHR Kings Patient Safety and Service Quality Research Centre, 138–142 Strand, London WC2R 1HH, UK;
- Accepted 2 September 2011
- Published online 19 January 2012.
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.