1. Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD 21205, USA
2. Center on Aging and Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD 21205, USA
3. Courant Institute of Mathematical Sciences, New York University, New York, NY 10012, USA
4. Welch Center for Prevention, Epidemiologic, and Clinical Research, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD 21205, USA
5. Department of Cardiology, Wake Forest University School of Medicine, Winston-Salem, NC 27109, USA
6. Cochlear Center for Hearing and Public Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD 21205, USA
7. Department of Biostatistics, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD 21205, USA
8. Department of Mental Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD 21205, USA
9. Department of Psychiatry and Behavioral Sciences, Johns Hopkins School of Medicine, Baltimore, MD 20205, USA
10. Lillehei Heart Institute, Department of Medicine, University of Minnesota Medical School, Minneapolis, MN 55455, USA