1. Division of General Pediatrics, Department of Pediatrics, Boston University School of Medicine, Boston, Massachusetts
2. Department of Pediatrics, Boston Medical Center, Boston, Massachusetts
3. Grayken Center for Addiction, Boston Medical Center, Boston, Massachusetts
4. Department of Emergency Medicine, School of Medicine, University of California at Davis, Sacramento
5. Department of Population Health, New York University School of Medicine, New York
6. Department of Epidemiology, Brown University School of Public Health, Providence, Rhode Island