[1] George Washington Univ, Sch Med & Hlth Sci, Dept Emergency Med, 2120 L St NW, Washington, DC 20037 USA
[2] George Washington Univ, Sch Publ Hlth, Milken Inst, Dept Hlth Policy, Washington, DC 20037 USA
[3] Icahn Sch Med Mt Sinai, New York City Hlth Hosp Elmhurst, Dept Emergency Med, New York, NY 10029 USA
[4] Icahn Sch Med Mt Sinai, New York City Hlth Hosp Elmhurst, Dept Med Educ, New York, NY 10029 USA
[5] Emory Univ, Sch Med, Dept Emergency Med, Atlanta, GA USA
[6] Wayne State Univ, Sch Med, Dept Emergency Med, Univ Hlth Ctr 6G, Detroit, MI USA
[7] Univ Calif Los Angeles, David Geffen Sch Med, Harbor UCLA Med Ctr, Dept Emergency Med, Torrance, CA USA
[8] Univ Texas Dallas, Dept Emergency Med, Dallas, TX USA
[9] Brown Univ, Alpert Med Sch, Dept Emergency Med, Providence, RI 02912 USA
[10] Louisiana State Univ, Spirit Char Emergency Med Residency Program, Dept Emergency Med, New Orleans, LA USA
[11] Univ Nebraska Med Ctr, Dept Emergency Med, Omaha, NE USA
[12] Univ Alabama Birmingham, Dept Emergency Med, Birmingham, AL USA
[13] George Washington Univ, Sch Med & Hlth Sci, Dept Psychiat, Washington, DC 20037 USA
[14] George Washington Univ, Milken Inst Sch Publ Hlth, Dept Hlth Policy, Washington, DC 20037 USA
[15] George Washington Univ, Milken Inst Sch Publ Hlth, Dept Emergency Med, Washington, DC 20037 USA