1 Departments of Critical Care Cardiology and Advanced Heart Failure and Transplant Cardiology, Cleveland Clinic, Cleveland, OH, USA. Electronic address: higgina@ccf.org.
2 Department of Cardiology, Centennial Medical Center, Nashville, TN, USA.
3 Department of Critical Care Medicine and Division of Cardiology, Department of Medicine, University of Alberta, Edmonton, Alberta, Canada.
4 Division of Cardiology, NYU Grossman School of Medicine & Bellevue Hospital Center, New York, NY, USA.