- Correspondence to Professor Fernando G Benavides, Center for Research in Occupational Health, Pompeu Fabra University, Doctor Aiguader, 80 Barcelona 8003, Spain;
- Received October 30, 2014
- Accepted November 8, 2014
- First published November 27, 2014.
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.