1. Division of Cardiovascular Medicine, Department of Medicine, Hospital of the University of Pennsylvania, Philadelphia (L.A.E., S.A.M.K., A.S.N., H.M.J., S.A.).
2. Penn Cardiovascular Outcomes, Quality, and Evaluative Research Center, Cardiovascular Institute, University of Pennsylvania, Philadelphia (L.A.E., S.A.M.K., A.S.N., S.A.).
3. Office of the Chief Medical Information Officer, University of Pennsylvania Health System, Philadelphia (C.S., M.E.D., S.A.).
4. Corporal Michael J. Crescenz VA Medical Center, Philadelphia, PA (H.M.J.).