1. From the Department of Preventive Medicine, Feinberg School of Medicine, Northwestern University, Chicago, IL (N.B.A., K.L., M.D.); Center for Social Epidemiology and Population Health, University of Michigan School of Public Health, Ann Arbor, MI (A.D.-R.); the Division of Public Health Sciences, Wake Forest University Health Science, Winston-Salem, NC (A.G.B.); and the Departments of Epidemiology and Medicine (Cardiology), Johns Hopkins Bloomberg School of Public Health, Baltimore, MD (M.S.).