1. Division of Cardiology, School of MedicineWest Virginia University Morgantown West Virginia
2. Department of Internal MedicineCook County Hospital Chicago Illinois
3. Department of Internal Medicine, Dow Medical CollegeDow University of Health Sciences Karachi Pakistan
4. Department of Internal Medicine, The Aga Khan University – Medical College Karachi Pakistan
5. Division of Cardiovascular Medicine, Case Western Reserve University School of MedicineUniversity Hospitals Cleveland Medical Center Cleveland Ohio
6. Department of Medicine, Case Western Reserve University School of MedicineUniversity Hospitals Cleveland Medical Center Cleveland Ohio
7. Division of CardiologyRush University Medical Center Chicago Illinois
8. Brigham and Women's Hospital Heart & Vascular Center, Harvard Medical SchoolHarvard University Boston Massachusetts