1. University of Vermont Vermont Center on Behavior and Health, Department of Psychiatry, , Burlington , VT , USA
2. University of Nevada Reno Department of Psychology, , Reno, NV , USA
3. Ohio State University Center for Tobacco Research, Ohio State University James Comprehensive Cancer Center, Department of Internal Medicine, , Columbus, OH , USA
4. Institutes for Behavior Resources , Baltimore, MD , USA
5. Brown University School of Public Health Department of Behavioral and Social Sciences, , Providence, RI , USA
6. Rutgers University Rutgers Center for Tobacco Studies, , New Brunswick, NJ , USA