From the Section of Preventive Medicine and Epidemiology (N.L.S., R.S.V.), The Whitaker Cardiovascular Institute (N.L.S.), and Department of Neurology (J.J.H., A.S.B., S.S.), Boston University School of Medicine; the Framingham Heart Study (N.L.S., J.J.H., A.S.B., R.S.V., S.S.); Departments of Biostatistics (A.S.B.) and Epidemiology (R.S.V.), Boston University School of Public Health; Cardiology Division (G.D.L.) and the Pulmonary and Critical Care Unit (G.D.L.), Massachusetts General Hospital,... (At 2016-04-05)