1. Cancer Research UK Health Behaviour Research Centre University College London London UK
2. Special Lecturer, UK Centre for Tobacco and Alcohol Studies, Division of Epidemiology and Public Health University of Nottingham Nottingham UK
3. Professor of Tobacco Addiction, King's College London, UK Centre for Tobacco and Alcohol Studies National Addiction Centre London UK
4. Cochrane Tobacco Addiction Group, Department of Primary Care Health Sciences University of Oxford Oxford UK
5. Professor of Behavioural Medicine, Nuffield Department of Primary Care Health Sciences, Radcliffe Observatory Quarter University of Oxford Oxford UK
6. Professor of Epidemiology, UK Centre for Tobacco and Alcohol Studies, Division of Epidemiology and Public Health University of Nottingham Nottingham UK
7. Reader in Addiction Statistical Analysis, Addictions Department, Institute of Psychiatry Kings College London London UK
8. Reader in Public Health Interventions, Wolfson Institute of Preventive Medicine Queen Mary University of London London UK
9. Health Economics Research Group Brunel University London Uxbridge UK
10. LeLan Ltd Bristol UK
11. Cancer Council Victoria, Melbourne, Victoria Australia