1. Division of General Medicine, Columbia University Medical Center, New York, New York
2. Health Economics and Health Technology Assessment, University of Glasgow, Glasgow, United Kingdom
3. Division of Cardiology, McGill University, Quebec City, Quebec, Canada
4. Department of Epidemiology & Biostatistics, University of California at San Francisco School of Medicine
5. Duke Clinical Research Institute, Durham, North Carolina
6. Smith Center for Outcomes Research in Cardiology, Division of Cardiology, Beth Israel Deaconess Medical Center, Boston, Massachusetts