1. Division of Cardiology Duke University School of Medicine Durham NC USA
2. Department of Medicine Dow University of Health Sciences Karachi Pakistan
3. Duke Clinical Research Institute Durham NC USA
4. Department of Medicine and Department of Health Research Methods, Evidence, and Impact McMaster University Hamilton ON Canada
5. Canada Population Health Research Institute Hamilton ON Canada
6. Division of Cardiology, Department of Internal Medicine UT Southwestern Medical Center Dallas TX USA
7. Department of Medicine University of Mississippi Medical Center Jackson MS USA
8. Baylor Scott and White Research Institute Dallas TX USA