| Authors: |
Burstein B; Montreal Children's Hospital, Division of Pediatric Emergency Medicine, McGill University Health Centre, Montreal, Quebec, Canada.; Department of Epidemiology, Biostatistics and Occupational Health, McGill University, Montreal, Quebec, Canada., Xie J; Section of Pediatric Emergency Medicine, Department of Pediatrics, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada., Kuppermann N; Department of Pediatrics, George Washington University School of Medicine and Health Sciences, Washington, DC.; Department of Emergency Medicine, George Washington University School of Medicine and Health Sciences, Washington, DC.; Children's National Hospital, Washington, DC. |
