1. Carolina Population Center, University of North Carolina, Chapel Hill, NC, USA
2. Center for the Study of Aging and Human Development, Duke University, Durham, NC, USA
3. School of Medicine, Duke University, Durham, NC, USA
4. Duke Population Research Institute, Duke University, Durham, NC, USA
5. Center for Child and Family Policy, Duke University, Durham, NC, USA
6. Joseph and Kathleen Bryan Alzheimer’s Disease Research Center, Duke University, Durham, NC, USA
7. Claude D. Pepper Older Americans Independence Center, Durham, NC, USA
8. Geriatric Research, Education, and Clinical Center; VA Durham Health Care System, Durham, NC, USA
9. Division of Cardiology, Department of Medicine, Duke University, Durham, NC, USA
10. Duke Clinical and Translational Science Institute, Durham, NC, USA