1. Research and Education to Empower Adolescents and Young Adults to Choose Health (REACH) Lab, Division of Adolescent Medicine, Department of Pediatrics, Stanford University, Palo Alto, California
2. University of Pennsylvania, Annenberg School for Communication, Philadelphia
3. University of Pennsylvania, Leonard Davis Institute of Health Economics, Philadelphia
4. Abramson Cancer Center, Tobacco and Environmental Carcinogenesis Program, Philadelphia, Pennsylvania
5. Department of Psychiatry, Yale University School of Medicine, New Haven