1. Section of Pediatric Emergency Medicine, University of Colorado School of Medicine, Aurora2Departments of Emergency Medicine and Pediatrics, Children’s Hospital Colorado, Aurora
2. Section of Emergency Medicine, Columbia University College of Physicians and Surgeons, New York, New York4Morgan Stanley Children’s Hospital of New York–Presbyterian, New York
3. Department of Emergency Medicine, University of California, Davis, School of Medicine, Sacramento6University of California, Davis, Medical Center, Sacramento