1. aDepartment of Emergency Medicine, University of California, San Francisco, San Francisco, California
2. bDivision of Emergency Medicine, Ann & Robert H. Lurie Children’s Hospital of Chicago, Chicago, Illinois
3. cDepartment of Psychiatry and Behavioral Sciences
4. dDepartments of Psychiatry
5. eDivision of Emergency Medicine, Boston Children’s Hospital, Boston, Massachusetts
6. fEmergency Medicine
7. gPediatrics, Harvard Medical School, Boston, Massachusetts