1. Department of Pathology, University of Alabama at Birmingham, Birmingham, Alabama, USA
2. Department of Pediatrics, University of Alabama at Birmingham, Birmingham, Alabama, USA
3. Department of Medicine, University of Alabama at Birmingham, Birmingham, Alabama, USA
4. Division of Bacterial Diseases, Respiratory Diseases Branch, National Center for Immunization and Respiratory Diseases, Centers for Disease Control & Prevention, Atlanta, Georgia, USA
5. Department of Laboratory Medicine and Pathology, Seattle Children’s Hospital, Seattle, Washington, USA
6. Memorial Sloan Kettering Cancer Center, Weill Medical College of Cornell University, New York, New York, USA
7. Children’s Healthcare of Atlanta, Emory University, Atlanta, Georgia, USA
8. Children’s Mercy Hospital, Kansas City, Missouri, USA
9. Department of Pathology, Hackensack University Medical Center, Hackensack, New Jersey, USA
10. Department of Pediatrics, University of Texas Health Science Center, San Antonio, Texas, USA
11. Department of Pathology, University of Texas Health Science Center, San Antonio, Texas, USA
12. Ann and Robert H. Lurie Children’s Hospital of Chicago, Chicago, Illinois, USA
13. Department of Pathology and Laboratory Medicine, Children’s Hospital of Los Angeles, Keck School of Medicine, University of Southern California, Los Angeles, California, USA