1. From the Division of Cardiology, Department of Medicine, Emory University School of Medicine, Atlanta, GA (W.T.O.); Division of Cardiology, Department of Medicine (M.J.S., E.Z.S.) and Department of Epidemiology and Prevention, Epidemiological Cardiology Research Center (E.Z.S.), Wake Forest School of Medicine, Winston-Salem, NC; Division of Cardiology, Department of Medicine, Section of Cardiac Electrophysiology, Western University, London, Ontario, Canada (J.D.R.); Knight Cardiovascular Institute,...