1. Case Western Reserve University School of Medicine and Harrington Heart and Vascular Institute University Hospitals Cleveland OH
2. The Smith Center for Outcomes Research in Cardiology Beth Israel Deaconess Medical Center Harvard Medical School Boston MA
3. Division of Cardiology Department of Medicine Beth Israel Deaconess Medical Center Harvard Medical School Boston MA
4. Department of Surgery Prince of Wales Hospital Sydney Australia
5. University of New South Wales Sydney Australia