- Dr M Medina-Ramón, Department of Environmental Health, Harvard School of Public Health, 401 Park Drive, Landmark Center, Suite 415E West, Boston, MA 02215, USA;
- Accepted May 25, 2007
- First published June 28, 2007.
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.