1. Division of Pediatric Critical Care Medicine, Department of Pediatrics, Indiana University School of Medicine, Riley Hospital for Children , Indianapolis, Indiana , USA
2. Division of Immunology, Boston Children's Hospital, Harvard Medical School , Boston, Massachusetts , USA
3. Division of Pulmonology, Section of Allergy–Immunology, Phoenix Children's Hospital , Phoenix, Arizona , USA
4. Department of Anesthesiology, Critical Care, and Pain Medicine, Boston Children's Hospital , Boston, Massachusetts , USA
5. Coronavirus and Other Respiratory Viruses Division, Centers for Disease Control and Prevention , Atlanta, Georgia , USA
6. Division of Pediatric Critical Care Medicine, Medical University of South Carolina , Charleston, South Carolina , USA
7. Department of Anesthesiology and Critical Care, Children's Hospital of Philadelphia, University of Pennsylvania Perelman School of Medicine , Philadelphia, Pennsylvania , USA
8. Section of Pediatric Critical Care, Department of Pediatrics, Arkansas Children's Hospital , Little Rock, Arkansas , USA
9. Department of Pediatrics, Section of Critical Care Medicine, University of Colorado School of Medicine and Children's Hospital Colorado , Aurora, Colorado , USA
10. Division of Pediatric Infectious Disease, Department of Pediatrics, Children's Mercy Kansas City , Kansas City, Missouri , USA
11. Division of Pediatric Critical Care Medicine, Department of Pediatrics, University of Alabama at Birmingham , Birmingham, Alabama , USA
12. Division of Pediatric Critical Care Medicine, Department of Pediatrics, NYU Grossman School of Medicine, Hassenfeld Children's Hospital at NYU Langone , New York, New York , USA
13. Department of Pediatrics, University of North Carolina at Chapel Hill Children's Hospital , Chapel Hill, North Carolina , USA
14. Department of Anesthesiology and Critical Care Medicine, Johns Hopkins University School of Medicine , Baltimore, Maryland , USA
15. Division of Critical Care Medicine, Department of Pediatrics, Baylor College of Medicine , Houston, Texas , USA
16. Department of Pediatrics, Washington University in St. Louis , St. Louis, Missouri , USA
17. Division of Pediatric Critical Care Medicine, Department of Pediatrics, Miller Children's and Women's Hospital of Long Beach , Long Beach, California , USA
18. Division of Critical Care Medicine, Department of Pediatrics, Akron Children's Hospital , Akron, Ohio , USA
19. Division of Critical Care Medicine, Department of Pediatrics, Nationwide Children's Hospital , Columbus, Ohio , USA
20. Division of Pediatric Critical Care, Department of Pediatrics, Cooperman Barnabas Medical Center , Livingston, New Jersey , USA
21. Division of Critical Care Medicine, UCSF Benioff Children's Hospital Oakland , Oakland, California , USA
22. Department of Pediatrics, Divisions of Critical Care Medicine and Allergy, Immunology, and Bone Marrow Transplant, University of California San Francisco , San Francisco, California , USA
23. Division of Pediatric Infectious Diseases, Department of Pediatrics, Vanderbilt University Medical Center , Nashville, Tennessee , USA
24. Division of Cardiology, Department of Pediatrics, Louisiana State University Health Sciences Center and Children's Hospital of New Orleans , New Orleans, Louisiana , USA
25. Division of Pediatric Critical Care Medicine, Department of Pediatrics, University of Miami Miller School of Medicine , Miami, Florida , USA
26. Pediatric Critical Care Division, Maria Fareri Children's Hospital at Westchester Medical Center and New York Medical College , Valhalla, New York , USA
27. Department of Pediatrics, Division of Infectious Diseases, Department of Cell and Molecular Biology, University of Mississippi Medical Center , Jackson, Mississippi , USA
28. Division of Pediatric Critical Care, Stead Family Department of Pediatrics, University of Iowa Carver College of Medicine , Iowa City, Iowa , USA
29. Department of Pediatrics, University of Cincinnati, Division of Infectious Diseases, Cincinnati Children's Hospital Medical Center , Cincinnati, Ohio , USA
30. Division of Critical Care Medicine, Department of Pediatrics, Northwestern University Feinberg School of Medicine, Ann & Robert H. Lurie Children's Hospital of Chicago , Chicago, Illinois , USA
31. Division of Pediatric Critical Care, Department of Pediatrics, University of Utah and Primary Children's Hospital , Salt Lake City, Utah , USA
32. Department of Pediatrics, Division of Critical Care Medicine, University of Texas Southwestern, Children's Medical Center Dallas, Dallas, Texas , USA
33. Department of Pediatrics, Division of Pediatric Critical Care Medicine, University of Louisville, and Norton Children's Hospital , Louisville, Kentucky , USA
34. Division of Critical Care Medicine, Children's Health Orange County (CHOC) , Orange, California , USA
35. Division of Critical Care, Connecticut Children's Medical Center , Hartford, Connecticut , USA
36. Divisions of Pediatric Infectious Diseases and Pediatric Critical Care Medicine, Department of Pediatric and Adolescent Medicine, Mayo Clinic , Rochester, Minnesota , USA
37. Division of Infectious Diseases, Boston Children's Hospital , Boston, Massachusetts , USA
38. Departments of Anaesthesia and Pediatrics, Harvard Medical School , Boston, Massachusetts , USA