1. Applied Clinical Research Center, Children’s Hospital of Philadelphia, Philadelphia, Pennsylvania
2. Division of Infectious Diseases, Department of Pediatrics, Nationwide Children’s Hospital and The Ohio State University, Columbus, Ohio
3. Center for Child Health, Behavior and Development, Seattle Children’s Hospital, Seattle, Washington
4. Division of Infectious Diseases, Ann & Robert H. Lurie Children’s Hospital of Chicago, Chicago, Illinois
5. Department of Pediatrics, Stanford University School of Medicine, Stanford, California
6. Division of Pulmonary Medicine, Cincinnati Children’s Hospital Medical Center and University of Cincinnati College of Medicine, Cincinnati, Ohio
7. Department of Pediatrics, University of Colorado School of Medicine and Children’s Hospital Colorado, Aurora, Colorado
8. Division of Cardiology, Nemours Children’s Health, Wilmington, Delaware