1. From the Section of Cardiac Electrophysiology, Division of Cardiovascular Medicine, Department of Internal Medicine (T.C., X.G., S.G., K.I., M.S., S.A.-H., F.M., F.B.), and Department of Radiology (G.M., H.P., N.C.), University of Michigan, Ann Arbor; Department of Internal Medicine, Detroit Medical Center, MI (S.S.); Section of Cardiac Electrophysiology, Division of Cardiology, Department of Internal Medicine, University of Colorado, Aurora (J.S., W.H.S.); Department of Cardiac Electrophysiology,...