1. Minneapolis Heart InstituteAbbott Northwestern Hospital and Minneapolis Heart Institute Foundation Minneapolis Minnesota
2. Division of Cardiovascular MedicineHennepin HealthCare Minneapolis MN
3. Division of Cardiovascular MedicinePalmetto Health Columbia, University of South Carolina South Carolina
4. Division of Cardiovascular Medicine, Department of MedicineUniversity of Arkansas Little Rock Arkansas
5. Department of Cardiovascular MedicineAin Shams University Cairo Egypt
6. Division of Cardiovascular Medicine, Department of MedicineCase Western Reserve University School of Medicine Cleveland Ohio
7. Division of Cardiovascular Medicine, Department of MedicineWarren Alpert Medical School of Brown University Providence Rhode Island