1. From the Johns Hopkins Ciccarone Center for the Prevention of Heart Disease, Johns Hopkins University School of Medicine, Baltimore, MD (S.M.I.U., M.M., S.K., O.A.O., Z.D., S.P.W., J.W.M., M.J.B.)
2. Minneapolis Heart Institute and Minneapolis Heart Institute Foundation, MN (M.D.M.)
3. Yale School of Medicine, New Haven, CT (K.N.)
4. The Princeton Longevity Center, NJ (J.A.R.)
5. Division of Cardiology, Emory University School of Medicine, Atlanta, GA (L.J.S.)
6. Department of Imaging, Cedars-Sinai Medical Center, Los Angeles, CA (D.S.B.)
7. David Geffen School of Medicine, Harbor-UCLA Medical Center, Torrance (M.J.B.)
8. Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD (K.M.)
9. Aetna Foundation, Hartford, CT (G.G.).