- Correspondence to: Dr P Boffetta Gene-Environment Epidemiology Group, International Agency for Research on Cancer, 150 cours Albert Thomas, 69008 Lyon, France;
- Accepted October 6, 2006
- First published October 19, 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.