1. Department of Emergency Medicine; Massachusetts General Hospital; Harvard Medical School; Boston Massachusetts
2. Center for Genetic Medicine Research; Children's National Health System; Washington District of Columbia
3. Division of Pulmonary Medicine; Department of Pediatrics; UPMC Children's Hospital of Pittsburgh; University of Pittsburgh; Pittsburgh Pennsylvania
4. Department of Pediatrics; Boston Children's Hospital; Boston Massachusetts
5. Department of Molecular Virology and Microbiology and Pediatrics; Baylor College of Medicine; Houston Texas
6. Division of Emergency Medicine; Children's National Health System; Washington District of Columbia
7. Departments of Pediatrics and Integrative Systems Biology and Pediatrics; George Washington University School of Medicine and Health Sciences; Washington District of Columbia