- Correspondence to: T E Roberts Health Economics Facility, HSMC, University of Birmingham, Park House, 40 Edgbaston Park Road, Birmingham B15 2RT, UK;
- Accepted November 16, 2005
- First published May 26, 2006.
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.