- Correspondence to: Dr D Gimeno Occupational Health Research Unit, Department of Experimental Sciences and Health, Universitat Pompeu Fabra, C/Dr. Aiguader 80, 08003 Barcelona, Catalonia, Spain;
- Accepted February 23, 2004
- First published September 13, 2004.
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.