1. Department of Emergency Medicine, University of California, San Francisco, San Francisco
2. Division of Emergency Medicine, Boston Children’s Hospital, Boston, Massachusetts
3. Department of Social and Behavioral Sciences, Harvard T.H. Chan School of Public Health, Boston, Massachusetts
4. Department of Population Medicine, Harvard Pilgrim Healthcare Institute, Boston, Massachusetts
5. Department of Pediatrics, University of California, San Francisco, San Francisco
6. Department of Ophthalmology, Boston Children’s Hospital and Harvard Medical School, Boston, Massachusetts