1. Department of Oncology, Lombardi Comprehensive Cancer Center; Georgetown University Medical Center; Washington DC USA
2. Department of Psychiatry and Behavioral Sciences; Medical University of South Carolina; Charleston SC USA
3. The Schroeder Institute for Tobacco Research and Policy Studies at Truth Initiative; Washington DC USA
4. Department of Health, Behavior and Society; Johns Hopkins Bloomberg School of Public Health; Baltimore MD USA
5. Department of Psychology; University of Waterloo; Waterloo Ontario Canada
6. School of Public Health and Health Systems; University of Waterloo; Waterloo Ontario Canada
7. Ontario Institute for Cancer Research; Toronto Ontario Canada
8. Nigel Gray Distinguished Fellow in Cancer Prevention; The Cancer Council Victoria; Melbourne Victoria Australia