- Dr K E Pickett, Department of Health Sciences, University of York, Seebohm Rowntree Building, Room A/TB/220, Heslington, York, YO10 5DD, UK;
- Accepted January 21, 2009
- First published March 3, 2009.
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.