1. Leon H. Charney Division of Cardiology, Department of Medicine; Division of Healthcare Delivery Science, Department of Population Health, New York University School of Medicine (J.A.D.).
2. Division of Cardiology, Duke Clinical Research Institute, Duke University School of Medicine, Durham, NC (M.G.N., K.P.A.).
3. Section of Geriatric Cardiology, Department of Medicine, University of Pittsburgh School of Medicine, PA (D.E.F.).