1. Department of Emergency Medicine, Massachusetts General Hospital, Boston
2. Division of Emergency Medicine, Department of Pediatrics, Northwestern University Feinberg School of Medicine and Ann & Robert H. Lurie Children’s Hospital of Chicago, Chicago, Illinois
3. Mary Ann & J. Milburn Smith Child Health Outcomes, Research and Evaluation Center, Stanley Manne Children’s Research Institute, Chicago, Illinois
4. Department of Emergency Medicine, University of Michigan, Ann Arbor
5. Department of Learning Health Sciences, University of Michigan, Ann Arbor