1. Division of Epidemiology, Department of Population Health, New York University School of Medicine, New York
2. Violence Prevention Research Program, Department of Emergency Medicine, University of California, Davis, Sacramento
3. Department of Biostatistics, Columbia University Mailman School of Public Health, New York, New York
4. Department of Epidemiology, Columbia University Mailman School of Public Health, New York, New York
5. Division of Translational Epidemiology, Vagelos College of Physicians and Surgeons, Columbia University, New York, New York
6. Division of Translational Epidemiology, New York State Psychiatric Institute, New York