[1] Oregon Hlth & Sci Univ, Dept Emergency Med, Portland, OR 97201 USA
[2] Harbor UCLA Med Ctr, Dept Emergency Med, Torrance, CA 90509 USA
[3] Univ Calif Los Angeles, David Geffen Sch Med, Los Angeles, CA 90095 USA
[4] Harbor UCLA, Los Angeles Biomed Res Inst, Torrance, CA USA
[5] Univ Calif San Francisco, Dept Emergency Med, San Francisco, CA 94143 USA
[6] Maimonides Hosp, Dept Emergency Med, Brooklyn, NY 11219 USA
[7] Univ Colorado, Dept Emergency Med, Denver, CO 80202 USA
[8] Univ Michigan, Sch Med, Dept Emergency Med, Ann Arbor, MI USA
[9] Univ Michigan, Sch Med, Off Med Student Educ, Ann Arbor, MI USA
[10] Univ Ottawa, Acad Innovat Med Educ, Skills & Simulat Ctr, Ottawa, ON, Canada