- Finlay D Dick, Department of Environmental and Occupational Medicine, University of Aberdeen, Foresterhill, Aberdeen, UK;
- Accepted April 4, 2007
- Final version accepted April 20, 2007
- First published April 20, 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.