1 The John Ochsner Heart and Vascular Institute, Ochsner Clinical School-the University of Queensland School of Medicine, New Orleans, Louisiana. Electronic address: hventura@ochsner.org.
2 The John Ochsner Heart and Vascular Institute, Ochsner Clinical School-the University of Queensland School of Medicine, New Orleans, Louisiana.
3 Brigham Women's Hospital Heart and Vascular Center and the Center of Advanced Heart Disease, Harvard Medical School, Boston, Massachusetts.