1. Division of Pediatric Infectious Diseases, Department of Pediatrics, Duke University Medical Center; Durham, North Carolina
2. Division of Pediatric Critical Care, Department of Pediatrics, Duke University Medical Center; Durham, North Carolina
3. Division of Pediatric Emergency Medicine, Department of Pediatrics, Duke University Medical Center; Durham, North Carolina
4. Department of Emergency Medicine, Duke University Medical Center; Durham, North Carolina
5. Division of Pediatric Emergency Medicine, Department of Pediatrics, Duke University Medical Center; Durham, North Carolina.