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- Professor in the Sanford School of Public Policy
- Associate Director of the Duke University Population Research Institute (DUPRI)
- Director of the Duke Population Research Center
- Nannerl O. Keohane University Distinguished Professor
- Professor of Psychology and Neuroscience
- Professor in Psychiatry and Behavioral Sciences
- Interim Dean of the Sanford School of Public Policy
- Creed C. Black Professor of Public Policy
- Professor in the Sanford School of Public Policy
- Professor in the Department of Sociology
- Faculty Director of the Duke Network Analysis Center (DNAC)
- Faculty Research Scholar of DuPRI's Population Research Center
- Associate Professor in the School of Nursing
- Associate Research Professor of Global Health
- Gosnell Family Professor in Global Health
- Professor in the Department of Evolutionary Anthropology
- Research Professor of Global Health
- Professor Emeritus of Sociology
- Professor of Global Environmental Health
- Research Professor of Global Health
- Faculty Research Scholar of DuPRI's Population Research Center
- Assistant Professor in Population Health Sciences
- Affiliate, Duke Global Health Institute
