1. University of Ottawa Heart Institute Ottawa Canada
2. Edwards Lifesciences Irvine CA USA
3. Department of Medical Statistics London School of Hygiene and Tropical Medicine London UK
4. The Boston Consulting Group Boston MA USA
5. Department of Medicine, Physiology, and Cell Biology, Division of Cardiovascular Medicine, and the Davis Heart and Lung Research Institute Ohio State University Columbus OH USA
6. Department of Heart Failure and Transplantation Vanderbilt Heart and Vascular Institute Nashville TN USA
7. Department of Cardiology Leiden University Medical Centre Leiden The Netherlands
8. Cardiovascular Research Foundation New York NY USA
9. Division of Cardiology Mayo College of Medicine, Mayo Clinic Rochester MN USA