1. From the Division of Cardiology, St. Elizabeth Medical Center, Tufts University School of Medicine, Boston, MA (L.G.); Division of Cardiology, Massachusetts General Hospital, Boston (M.R.J., K.R.); Division of Cardiology, Wellmont Holston Valley Medical Center, Kingsport, TN (C.M.); CardioVascular Solutions Institute, Bradenton, FL (G.S.); Division of Cardiology, Banner Good Samaritan Medical Center, Phoenix, AZ (A.P.); Austin Heart, P.A., TX (F.Z.); Cardiovascular Institute of the South, Lafayette,...