1. University of Michigan Injury Center,
2. Department of Emergency Medicine, and
3. Michigan Youth Violence Prevention Center and
4. University of Michigan Addiction Research Center, Department of Psychiatry, University of Michigan School of Medicine, Ann Arbor, Michigan;
5. Department of Health Behavior and Health Education, University of Michigan School of Public Health, Ann Arbor, Michigan;
6. National Serious Mental Illness Treatment, Resource and Evaluation Center, Department of Veterans Affairs, Ann Arbor, Michigan; and
7. Department of Emergency Medicine, Hurley Medical Center, Flint, Michigan