1 Heart Failure and Cardiac Transplantation Program, Cedars-Sinai Heart Institute, Los Angeles, California, USA.
2 San Diego Cardiac Center, San Diego, California, USA.
3 The Pauley Heart Center, Virginia Commonwealth University, Richmond, Virginia, USA.
4 Division of Cardiology, University of California at Los Angeles, Los Angeles, California, USA.
5 Cardiology Division, Hospital de Clínicas de Porto Alegre, Porto Alegre, Rio Grande do Sul, Brazil.
6 Department of Cardiovascular Diseases, Katholieke Universiteit Leuven, University Hospital Gasthuisberg, Leuven, Belgium.
7 Department of Medical and Surgical Sciences, University of Bologna, Bologna, Italy.
8 Division of Cardiology, Dontan Sacred Heart Hospital, Hallym University College of Medicine, Gyeonggido, Republic of Korea.
9 Cardiology Department, Children's Hospital Westmead, Sydney, New South Wales, Australia.
10 Cardiac Surgery Department, King Faisal Specialist Hospital, Riyadh, Saudi Arabia.
11 Department for Congenital and Cardiovascular Surgery, University Children's Hospital, Zurich, Switzerland.
12 Brigham Health Heart and Vascular Center and Harvard Medical School, Boston, Massachusetts, USA.
13 Division of Cardiovascular Medicine, University of Utah School of Medicine, Salt Lake City, Utah, USA. Electronic address: josef.stehlik@hsc.utah.edu.