From the Department of Neurology (D.K.S., S.R.M., S.E.K.), Renal, Electrolyte, and Hypertension Division (R.R.K., R.R.T.) and Division of Vascular Medicine (E.R.M.), Department of Medicine, Hospital of the University of Pennsylvania, Philadelphia; Department of Biostatistics and Epidemiology, University of Pennsylvania, Philadelphia (X.Z., J.R., L.N., H.I.F.); Department of Medicine, Tulane University, New Orleans, LA (L.L.H.); Department of Epidemiology, Tulane University School of Public Health... (At 2015-08)