Affiliation: | 1. Division of Cardiology, London Health Sciences Centre, Western University, London, Ontario, Canada;2. Department of Cardiology, Sheffield Teaching Hospitals NHS Foundation Trust, Sheffield, UK;1. Division of Cardiology, University of California, San Francisco, Fresno, California;2. Division of Cardiology, University of California, Los Angeles and Ahmanson-UCLA Cardiomyopathy Center, Los Angeles, California;3. Brigham and Women''s Hospital Heart & Vascular Center and Harvard Medical School, Boston, MA;4. Division of Cardiology, University of New Mexico, Albuquerque, New Mexico;5. Department of Emergency Medicine, Baylor Medical Center, Houston, TX;6. Duke Clinical Research Institute, Duke University Medical Center, Durham, North Carolina |