[1] Massachusetts Gen Hosp, Dept Anesthesiol, Boston, MA 02114 USA
[2] Massachusetts Gen Hosp, Emergency Serv, Boston, MA 02114 USA
[3] Harvard Univ, Sch Med, Harvard Div Emergency Med, Boston, MA USA
[4] Harvard Affiliated Emergency Med Residency, Boston, MA USA
[5] Ctr Med Simulat, Boston, MA USA
[6] Brigham & Womens Hosp, Dept Emergency Med, Boston, MA 02115 USA
[7] Dynam Res Corp, MedTeams, Crew Performance Grp, Boston, MA USA
[8] Mt Auburn Hosp, Dept Emergency Med, Boston, MA USA