1. Division of Cancer Prevention and Population Sciences; Roswell Park Cancer Institute; Buffalo; NY; USA
2. Department of Health Behavior; Roswell Park Cancer Institute; Buffalo; NY; USA
3. VicHealth Centre for Tobacco Control; The Cancer Council Victoria; Carlton; Victoria; Australia
4. Division of Epidemiology and Public Health; UK Centre for Tobacco Control Studies; University of Nottingham; Nottingham; UK
5. School of Public Health and Health Systems; Propel Centre for Population Health; University of Waterloo; Waterloo; Ontario; Canada
6. Department of Psychiatry and Behavioral Sciences; Hollings Cancer Center; Medical University of South Carolina; Charleston; SC; USA