1. aDivision of Emergency Medicine, Children’s Hospital of Philadelphia, Philadelphia, Pennsylvania
2. bDivision of Emergency Medicine, Ann & Robert H. Lurie Children’s Hospital of Chicago, Chicago, Ilinois
3. cDivision of General Pediatrics, Children’s Hospital of Philadelphia and University of Pennsylvania School of Medicine, Philadelphia, Pennsylvania
4. dDepartment of General Pediatrics, Nicklaus Children’s Hospital, Miami, Florida
5. eDivision of Pediatric Critical Care and Hospital Medicine, New York-Presbyterian/Columbia University Irving Medical Center, New York, New York
6. fHassenfeld Child Health Innovation Institute, Brown University School of Public Health, Providence, Rhode Island
7. gThe EdLaw Project, Boston, Massachusetts
8. hBoston Medical Center and Department of Pediatrics, Boston University School of Medicine, Boston, Massachusetts