1. University of Ottawa Heart Institute, University of Ottawa, Canada (M.R., D.G.).
2. German Heart Center, Charité Universitätsmedizin Berlin, Germany (V.F.).
3. Peter Munk Cardiac Centre and Heart and Stroke Richard Lewar Centre, University of Toronto, Canada (M.E.F.).
4. Institute of Clinical Trials and Methodology, University College London, UK (N.F.).
5. New York Presbyterian Hospital, Weill Cornell Medicine, NY (M.F.G.).
6. Massachusetts General Hospital, Harvard Medical School, Boston (D.E.C.).
7. Oxford University Hospitals, UK (D.P.T.)