1. Addictions DepartmentInstitute of Psychiatry, Psychology and Neuroscience, King's College London London UK
2. UK Centre for Tobacco & Alcohol Studies UK
3. Department of PsychologyUniversity of Waterloo Waterloo Ontario Canada
4. Department of Psychiatry and Behavioral SciencesMedical University of South Carolina Charleston SC USA
5. Hollings Cancer CenterMedical University of South Carolina Charleston SC USA
6. School of Public Health and Health SystemsUniversity of Waterloo Waterloo Ontario Canada
7. Ontario Institute for Cancer Research Toronto Ontario Canada
8. Cancer Council Victoria Melbourne Victoria Australia
9. School of Psychological SciencesUniversity of Melbourne Melbourne Victoria Australia