1. Ann Arbor VA Center for Clinical Management and Research, Ann Arbor, MI
2. Saint Luke’s Mid America Heart Institute, Kansas City, MO
3. Yale University School of Medicine, New Haven, CT
4. Texas A&M University Health Science Center College of Medicine, Temple, TX
5. Mercy Health, St. Louis, MO
6. St. Vincent Heart Center of Indiana, Indianapolis, IN
7. Sentara Cardiovascular Research Institute, Norfolk, VA
8. Henry Ford Health System, Detroit, MI
9. Forrest General, Hattiesburg, MS
10. Texas A&M University Health Science Center, College of Medicine, Temple, TX
11. Mercy Health System, St. Louis, MO
12. Lee Memorial Health System, Fort Myers, FL
13. Centra Lynchburg General Hospital, Lynchburg, VA
14. Denver VA Medical Center, Denver, CO
15. Department of Radiology, Leiden University Medical Center, Leiden, The Netherlands
16. Department of Medicine, University of Washington, Seattle, WA
17. ImageCor, Bradenton, FL
18. Center for Outcomes Research and Evaluation, New Haven, CT