| Affiliation: | 1. Department of Biostatistics, University of North Carolina, Chapel Hill, North Carolina;2. Center for Observational Research, Amgen, Thousand Oaks, California;3. Department of Epidemiology, University of Alabama, Birmingham, Alabama;4. Division of General Internal Medicine, Weill Cornell Medical College, New York, New York;5. Department of Health Care Organization and Policy, University of Alabama, Birmingham, Alabama;;6. Division of Cardiovascular Disease, University of Alabama, Birmingham, Alabama;;7. Division of Preventive Medicine, University of Alabama, Birmingham, Alabama; |
