- Correspondence to: Stanton A Glantz PhD, Box 1390, University of California, San Francisco, CA 94143-1390, USA;
- Received August 22, 2005
- Accepted October 16, 2005
- First published January 24, 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.