1 Heart Failure and Transplant Unit, Onassis Cardiac Surgery Center, Athens, Greece; Division of Cardiothoracic Surgery, University of Utah Health and School of Medicine, Salt Lake City, UT, USA.
2 Heart Failure and Transplant Unit, Onassis Cardiac Surgery Center, Athens, Greece; Division of Cardiovascular Medicine, University of Utah Health and School of Medicine, Salt Lake City, UT, USA.
3 Division of Cardiology, Columbia University, New York, NY, USA.
4 Division of Cardiovascular Medicine, University of Utah Health and School of Medicine, Salt Lake City, UT, USA. Electronic address: stavros.drakos@hsc.utah.edu.