- Melanie Wakefield PhD, Visiting Research Scientist, Health Research and Policy Centers, University of Illinois at Chicago, 850 West Jackson Boulevard, Suite 400, Chicago, Illinois 60607, USA;
- Received August 26, 1999
- Revised February 18, 2000
- Accepted February 25, 2000
- First published June 1, 2000.
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.