1. CDC COVID-19 Response Team , Atlanta, Georgia , USA
2. Vanderbilt University Medical Center , Nashville, Tennessee , USA
3. Baylor Scott & White Health , Temple, Texas , USA
4. Texas A&M University College of Medicine , Temple, Texas , USA
5. University of Colorado School of Medicine , Aurora, Colorado , USA
6. University of Iowa , Iowa City, Iowa , USA
7. Wake Forest University Baptist Medical Center , Winston-Salem, North Carolina , USA
8. Johns Hopkins Hospital , Baltimore, Maryland , USA
9. Hennepin County Medical Center , Minneapolis, Minnesota , USA
10. Montefiore Healthcare Center, Albert Einstein College of Medicine , Bronx, New York , USA
11. University of Washington School of Medicine , Seattle, Washington , USA
12. Baystate Medical Center , Springfield, Massachusetts , USA
13. Intermountain Medical Center and University of Utah , Salt Lake City, Utah , USA
14. University of Michigan School of Public Health , Ann Arbor, Michigan , USA
15. Oregon Health & Science University Hospital , Portland, Oregon , USA
16. Emory University School of Medicine , Atlanta, Georgia , USA
17. Cleveland Clinic , Cleveland, Ohio , USA
18. Stanford University School of Medicine , Palo Alto, California , USA
19. Ronald Reagan-UCLA Medical Center , Los Angeles, California , USA
20. University of Miami , Miami, Florida , USA
21. Washington University , St. Louis, Missouri , USA
22. Ohio State University Wexner Medical Center , Columbus, Ohio , USA
23. University of Michigan School of Medicine , Ann Arbor, Michigan , USA
24. Beth Israel Deaconess Medical Center , Boston, Massachusetts , USA