1. From the Department of Medicine, Division of Cardiology, University of North Carolina School of Medicine, Chapel Hill (L.R.)
2. Department of Internal Medicine, Division of Cardiovascular Medicine (L.R., R.L., A.E.G., P.W.C., C.E.C., M.M.B.), Yale School of Medicine, New Haven, CT
3. Department of Internal Medicine, Division of General Medicine (J.J.S., S.H.), Yale School of Medicine, New Haven, CT
4. Department of Neurology and Center for Neuroepidemiological and Clinical Neurological Research (J.J.S.), Yale School of Medicine, New Haven, CT
5. VA Connecticut Healthcare System, West Haven (J.J.S., A.E.G., P.W.C., C.E.C., C.B., S.H.).
6. Yale Center for Medical Informatics (C.M.R., C.B.), Yale School of Medicine, New Haven, CT
7. Department of Emergency Medicine (C.M.R., J.D., C.B.), Yale School of Medicine, New Haven, CT
8. Department of Anesthesiology (M.M.B.), Yale School of Medicine, New Haven, CT