1. From the Department of Medicine, Emory University School of Medicine, Atlanta, GA (N.G., D.J.E., H.A.K., P.M., M.K., A.M.Z., L.S., D.P.J., A.A.Q.); Institute of Cardiovascular Science, University College London, London, United Kingdom (R.S.P.); Department of Epidemiology, Rollins School of Public Health, Atlanta, GA (E.V.); Department of Biostatistics, Florida International University, Miami, FL (E.V.); and Department of Medicine, Atlanta Veterans Affairs Medical Center, Decatur, GA (A.M.Z.).