1 Cardiac Intensive Care, Cardiology, Emory Heart & Vascular Institute, 1365 Clifton Road NE, A2243, Atlanta, GA 30322, USA. Electronic address: steven.hollenberg@emory.edu.
2 Cardiothoracic, MCS, and Transplant Critical Care, Division of Cardiovascular Anesthesia, Department of Anesthesiology and Critical Care Medicine, Baylor College of Medicine, 6720 Bertner Avenue, Houston, TX 77030-2604, USA. Electronic address: Jose.Diaz-Gomez@bcm.edu.