- Correspondence to Dr Paul Aveyard, Primary Care Clinical Sciences, University of Birmingham, Birmingham B15 2TT, UK;
- Received July 5, 2011
- Accepted November 29, 2011
- First published February 16, 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.