1 Division of Cardiovascular Medicine, University of Utah School of Medicine, Salt Lake City, Utah. Electronic address: josef.stehlik@hsc.utah.edu.
2 Division of Cardiovascular Surgery, The Hospital of The University of Pennsylvania, Philadelphia, Pennsylvania.
3 Department of Cardiology, Leiden University Medical Center, Leiden, the Netherlands.
4 Department of Surgery, Dartmouth-Hitchcock Medical Center, Lebanon, New Hampshire.
5 International Society for Heart and Lung Transplantation Transplant Registry, Dallas, Texas.
6 Division of Vascular Surgery and Endovascular Therapy, Hospital of the University of Pennsylvania, Philadelphia, Pennsylvania.
7 Department of Cardiology, GVM Care & Research, E.S. Health Science Foundation, University of Ferrara, Ferrara, Italy.
8 Division of Cardiac Surgery, Johns Hopkins University School of Medicine, Baltimore, Maryland; Division of Cardiovascular Surgery, Johns Hopkins All Children's Heart Institute and Florida Hospital for Children, Saint Petersburg, Tampa, and Orlando, Florida.
9 Division of Cardiovascular Medicine, University of Wisconsin School of Medicine and Public Health, Madison, Wisconsin.
10 Division of Vascular Surgery, University of Utah School of Medicine, Salt Lake City, Utah.
11 Division of Cardiology, University of Colorado Anschutz Medical Campus, Aurora, Colorado.
12 Heart and Vascular Center Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts.
13 Department of Cardiology, Bichat Hospital, University Paris VII, Paris, France.
14 St. Vincent Heart Center, Indianapolis, Indiana.
15 Department of Medicine, Karolinska Institutet, and Department of Cardiology, Karolinska University Hospital, Stockholm, Sweden.