1. Vermont Center on Behavior and Health, Department of Psychiatry, University of Vermont, Burlington, VT, USA
2. Office of Science, Center for Tobacco Products, Food and Drug Administration, Silver Spring, MD, USA
3. Westat, Rockville, MD, USA
4. Department of Psychiatry & Behavioral Sciences, Medical University of South Carolina, Charleston, SC, USA
5. Department of Oncology, Georgetown University Medical Center, Washington, DC, USA
6. Department of Social and Behavioral Health Sciences, Center for Tobacco Studies, Rutgers School of Public Health, Piscataway, NJ, USA
7. Department of Health Behavior, Division of Cancer Prevention & Population Sciences, Roswell Park Comprehensive Cancer Center, Buffalo, NY, USA
8. Division of Social and Behavioral Sciences/Health Administration and Policy, University of Nevada, Reno, Reno, NV, USA
9. Department of Social and Behavioral Sciences. NYU College of Global Public Health. New York University, New York, NY, USA
10. Department of Psychology and School of Public Health and Health Systems, University of Waterloo, Waterloo, ON, Canada
11. Ontario Institute for Cancer Research, Toronto, ON, Canada
12. Institute for Mental Health Policy Research, Centre for Addiction and Mental Health, London, ON, Canada
13. Department of Psychiatry, University of Minnesota, Minneapolis, MN, USA
14. Department of Family Medicine and Public Health, University of California, San Diego, San Diego, CA, USA
15. Tobacco Control Research Branch, Behavioral Research Program, National Cancer Institute, Bethesda, MD, USA
16. National Institute on Drug Abuse, Bethesda, MD, USA