1. Division of Cardiovascular Medicine, Heart Transplantation, Stanford University, Palo Alto, CA (Y.M., J.J.T., K.K.K.).
2. Ted Rogers Centre of Excellence in Heart Function, Peter Munk Cardiac Centre, University Health Network, Department of Medicine, University of Toronto, Canada (Y.M., C.P.S.F., C.M., H.J.R.).
3. Toronto Centre for Liver Disease, University Health Network, Department of Medicine, University of Toronto, ON, Canada (A.F.G.).