1. Division of Intramural Research, National Institute on Minority Health and Health Disparities, National Institutes of Health, Bethesda, MD, USA
2. Department of Epidemiology, Rollins School of Public Health, Emory University, Atlanta, Georgia, USA
3. Department of Agricultural and Applied Economics, College of Agricultural and Environmental Science, University of Georgia, Athens, Georgia, USA
4. Department of Health Policy and Management, College of Public Health, University of Georgia, Athens, Georgia, USA
5. Department of Community Health Nursing, Muhimbili University of Health and Allied Sciences, Dar es Salaam, United Republic of Tanzania