- Correspondence to: Stanton A Glantz, PhD, Box 0103, University of California, San Francisco, San Francisco, CA 94143-0130, USA;
- Received December 12, 2001
- Accepted March 13, 2002
- Revised March 12, 2002
- First published June 1, 2002.
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.