- Correspondence to: Lisa A Bero PhD University of California, 3333 California Street, Suite 420, Box 0613, San Francisco, CA 94143-0613 (94118 for express mail only), USA;
- Published in print 1 April 2005.
- Published online 24 March 2005.
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.