1. Department of Health Promotion, Education, and Behavior, Arnold School of Public Health, University of South Carolina, Columbia, SC
2. Department of Health Behavior, Gillings School of Global Public Health and Lineberger Comprehensive Cancer Center, University of North Carolina, Chapel Hill, NC
3. Department of Communication, Cornell University, Ithaca, NY
4. Department of Psychology, The Ohio State University, Columbus, OH
5. Department of Psychiatry, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA
6. Tobacco Control Research Branch, Behavioral Research Program, Division of Cancer Control and Population Sciences, National Cancer Institute, Rockville, MD