1. Department of Environmental Health (A.A.P., J.S., H.L.-G., D.W.D., A.B., Y.W., D.R.G., F.L., P.K.), Harvard T.H. Chan School of Public Health, Boston, MA.
2. University of Texas Southwestern Medical Center, Department of Internal Medicine, Division of Cardiology, Cardiac Arrhythmia Service, Dallas (M.S.L.).
3. Department of Epidemiology (J.S., D.W.D., M.A.M., F.L.), Harvard T.H. Chan School of Public Health, Boston, MA.
4. Cardiovascular Epidemiology Research Unit, Beth Israel Deaconess Medical Center, Boston, MA (M.A.M.).
5. Channing Division of Network Medicine, Department of Medicine, Brigham and Women’s Hospital and Harvard Medical School, Boston, MA (D.R.G., F.L.).
6. Department of Biostatistics (B.A.C.), Harvard T.H. Chan School of Public Health, Boston, MA.