1. From the Center for Outcomes Research and Evaluation, Yale-New Haven Hospital, New Haven; Section of Chronic Disease Epidemiology, School of Epidemiology and Public Health (J.H.L., H.M.K., L.M.B.), Department of Cardiology (H.M.K., M.J.R.), and Yale Stroke Program, Department of Neurology (L.M.B.), Yale University School of Medicine, New Haven; Qualidigm (H.M.K., Y.W., M.J.R., L.M.B.), Middletown; and Neurology Service (L.M.B.), VA Connecticut Healthcare System, West Haven, Conn.