1 From the Departments of Neurology (A.W.W., M.T.M.) and Epidemiology and Biostatistics (A.W.W.) and Center for Clinical Epidemiology and Biostatistics (A.W.W.), University of Pennsylvania Perelman School of Medicine; the Leonard Davis Institute of Health Economics (A.W.W.), University of Pennsylvania, Philadelphia; the Department of Neurology (L.W.), Indiana University School of Medicine, Indianapolis; Health Services Research and Development Service, Stroke Quality Enhancement Research Initiative (L.W.), and the Center for Healthcare Information and Communication (L.W.), Richard L. Roudebush VA Medical Center, Indianapolis, IN. Allison.willis@uphs.upenn.edu.
2 From the Departments of Neurology (A.W.W., M.T.M.) and Epidemiology and Biostatistics (A.W.W.) and Center for Clinical Epidemiology and Biostatistics (A.W.W.), University of Pennsylvania Perelman School of Medicine; the Leonard Davis Institute of Health Economics (A.W.W.), University of Pennsylvania, Philadelphia; the Department of Neurology (L.W.), Indiana University School of Medicine, Indianapolis; Health Services Research and Development Service, Stroke Quality Enhancement Research Initiative (L.W.), and the Center for Healthcare Information and Communication (L.W.), Richard L. Roudebush VA Medical Center, Indianapolis, IN.