1. From the Departments of Family Medicine (A.J.V.) and Biostatistics (F.-C.L.) and Division of Cardiology, Department of Medicine (A.L.H.), University of North Carolina at Chapel Hill, Chapel Hill, NC; Department of Medicine (D.S.), Columbia University Medical Center, New York, NY; Division of Biostatistics and Health Services Research (S.D.P.), Department of Quantitative Health Sciences, University of Massachusetts, Amherst, MA; Department of Epidemiology and Biostatistics (M.J.P.), University of...