Article Information
vol. 22 no. 5 809-814
PubMed
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History
- Received March 20, 2003
- Accepted June 29, 2003
- Published online November 1, 2003.
Copyright & Usage
© ERS Journals Ltd
Author Information
- 1Dept Epidemiology and Public Health, Imperial College London, London, UK, 2School of Public Health, University of Illinois at Chicago, Chicago, IL, USA, 3Worldwide Epidemiology GlaxoSmithKline, Greenford, Middlesex and Health Promotion Research Unit, London School of Hygiene and Tropical Medicine, London, UK
- A. Hansell, Dept Epidemiology and Public Health, Imperial College London, St Mary's Campus, Norfolk Place, London, W2 1PG, UK. Fax: 44 2074025253. E‐mail: a.hansell@imperial.ac.uk