- Correspondence to Ms Ailsa Lyons, Clinical Sciences Building, Phase 2, UK Centre for Tobacco Control Studies, Division of Epidemiology and Public Health, School of Community Health Sciences, University of Nottingham, Nottingham NG5 1PB, UK;
- Received November 4, 2009
- Accepted January 24, 2010
- First published April 30, 2010.
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