1. Center for the Study of Tobacco Products Virginia Commonwealth University Richmond VA USA
2. Department of Health Behavior and Policy Virginia Commonwealth University School of Population Health Richmond VA USA
3. Department of Psychology Virginia Commonwealth University Richmond VA USA
4. Institute for Integrative Health Care and Health Promotion, Faculty of Health/School of Medicine Witten/Herdecke University Witten Germany
5. Department of Internal Medicine Virginia Commonwealth University School of Medicine Richmond VA USA
6. Addiction Recovery Research Center Fralin Biomedical Research Institute at Virginia Tech Carilion Roanoke VA USA