1. From the Cardiology Section, Dartmouth Medical School, Dartmouth-Hitchcock Medical Center, Lebanon, NH (A.V.K., M.S.); Department of Medicine, Brigham and Women’s Hospital, Boston, Mass (D.S.B., R.E.K.); Department of Radiology, Massachusetts General Hospital, Boston, Mass (J.J.S.); Devices Sector, Medical Devices Agency-United Kingdom (D.J.); Department of Surgery, Stanford University, Stanford, Calif (T.J.F.); and Lenox Hill Heart and Vascular Institute, New York, NY (M.B.L.). Dr Feigal is the...