- Correspondence to: Christine Jackson, PhD, Department of Health Behavior and Health Education, School of Public Health, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599-7400, USA;
- Received June 28, 2002
- Accepted December 18, 2002
- First published March 1, 2003.
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.