1 Department of Human Sciences, Innovation and Territory, University of Insubria, Varese-Como, Italy; Center for Clinical Ethics, Department of Biotechnologies and Life Sciences, University of Insubria, Varese, Italy.
2 Heart Failure and Transplant Unit, IRCCS Azienda Ospedaliero Universitaria di Bologna, Bologna, Italy. Electronic address: luciano.potena2@unibo.it.
3 Division of Cardiology, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania.
4 Division of Cardiovascular Medicine, Krannert Cardiovascular Center, Indiana University, Indianapolis, Indiana.