[1] Beth Israel Deaconess Med Ctr, Dept Emergency Med, One Deaconess Rd,Rosenberg 2, Boston, MA 02215 USA
[2] Harvard Med Sch, Boston, MA 02115 USA
[3] Univ Chicago, Sect Emergency Med, Chicago, IL 60637 USA
[4] Univ Chicago, Divers Equ & Inclus Educ, Chicago, IL 60637 USA