[1] Univ Michigan, Dept Emergency Med, Ann Arbor, MI 48109 USA
[2] Injury Res Ctr, Sch Publ Hlth, Dept Hlth Behav & Hlth Educ, Injury Res Ctr, Ann Arbor, MI 48109 USA
[3] Yale Univ, Sch Med, Dept Emergency Med, New Haven, CT USA
[4] Univ Michigan, Dept Psychiat, Ann Arbor, MI 48109 USA
[5] Univ Colorado, Denver Hlth Med Ctr, Denver, CO 80202 USA
[6] Univ Calif Irvine, Irvine, CA USA
[7] Ctr Trauma & Injury Prevent Res, Irvine, CA USA
[8] Texas Tech Univ, Ctr Hlth Sci, Sch Med, El Paso, TX USA
[9] Boston Univ, Sch Med, Dept Emergency Med, Boston, MA 02118 USA