1. Department of Behavioral Sciences and Health Education, Emory University Rollins School of Public Health, 1518 Clifton Road NE, 5th Floor, Atlanta, GA 30322, USA
2. Department of Health Promotion, Education and Behavior, University of South Carolina, Columbia, SC 29208, USA
3. Department of Tobacco Research, Instituto Nacional de Salud Pública, Mexico, Mexico 62508
4. Department of Family Medicine and Community Health, Program for Health Disparities Research, University of Minnesota, MN 55414, USA
5. Department of Medicine, Center for Health Equity, University of Minnesota, MN 55414, USA