1. Lewis Katz School of Medicine at Temple University, Philadelphia, Pennsylvania
2. Institut Universitaire de Cardiologie et de Pneumologie de Québec, Hôpital Laval, Quebec, Quebec, Canada
3. Sarasota Memorial Hospital, Sarasota, Florida
4. University of Chicago Medical Center, Chicago, Illinois
5. Beth Israel Deaconess Medical Center, Boston, Massachusetts
6. Carolinas Medical Center (Atrium Health), Charlotte, North Carolina
7. Michael E. DeBakey Veterans Affairs (VA) Medical Center, Dallas, Texas
8. University of Cincinnati Hospital, Cincinnati, Ohio
9. Louisiana State University Health Sciences Center, Shreveport, Louisiana
10. Tampa General Hospital, University South Florida, Tampa, Florida
11. University of Tennessee Medical Center, Knoxville, Tennessee
12. University of Texas Southwestern Medical Center at Dallas, Dallas, Texas
13. Mayo Clinic Florida, Jacksonville, Florida
14. Northwestern University Feinberg School of Medicine, Chicago, Illinois
15. University of Maryland Medical Center, Baltimore, Maryland
16. University of Vermont Medical Center, Burlington, Vermont
17. Lahey Hospital & Medical Center, Burlington, Massachusetts
18. Penn State Milton S. Hershey Medical Center, Hershey, Pennsylvania
19. Cooper University Hospital, Camden, New Jersey
20. Detroit Clinical Research Center, Beaumont Botsford Hospital, Farmington Hills, Michigan
21. Kaiser Permanente Riverside Medical Center, Riverside, California
22. Froedtert Hospital, Medical College of Wisconsin, Milwaukee, Wisconsin
23. Sparks Regional Medical Center, Fort Smith, Arkansas
24. Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
25. University of Utah Health Sciences, Salt Lake City, Utah
26. Kaiser Permanente Northwest, Portland, Oregon
27. Piedmont Hospital, Atlanta, Georgia
28. University of California Medical Center at San Diego, San Diego, California
29. Virginia Commonwealth University, Richmond, Virginia
30. California Pacific Medical Center, San Francisco, California; and
31. Miami VA Healthcare System, Miami, Florida