1 Department of Critical Care Medicine and Division of Cardiology, University of Alberta, Edmonton, Alberta, Canada; Canadian Vigour Center, University of Alberta, Edmonton, Alberta, Canada. Electronic address: sv9@ualberta.ca.
2 Sentara Heart Hospital, Advanced Heart Failure Center, and Eastern Virginia Medical School, Norfolk, Virginia, USA.
3 Université de Paris, U942 Inserm-MASCOT, Paris, France; APHP, Department of Anesthesia, Burn and Critical Care, Hôpitaux Universitaires, Saint Louis Lariboisière, Paris, France.