1. Health Disparities Institute, University of Connecticut Health Center, Hartford, Connecticut, USA;
2. Department of Health Behavior, University of North Carolina at Chapel Hill Gillings School of Global Public Health, Chapel Hill, North Carolina, USA;
3. Department of Medicine, Duke University, Durham, North Carolina, USA;
4. Public Health, School of Social Sciences, Humanities and Arts, University of California Merced, Merced, California, USA;
5. Departments of Social Medicine and Medicine, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA