1. Department of Family and Preventive Medicine, University of Oklahoma Health Sciences Center , Oklahoma City, OK , USA
2. TSET Health Promotion Research Center, Stephenson Cancer Center, University of Oklahoma Health Sciences Center , Oklahoma City, OK , USA
3. Rutgers Center for Tobacco Studies, Rutgers Biomedical and Health Sciences , New Brunswick, NJ , USA
4. Department of Health Behavior, Society and Policy, Rutgers School of Public Health , Piscataway, NJ , USA