[1] Childrens Natl Hosp, Simulat Program, Washington, DC 20010 USA
[2] Childrens Natl Hosp, Div Emergency Med, Washington, DC 20010 USA
[3] Indiana Univ Sch Med, Indianapolis, IN 46202 USA
[4] Indiana Univ Hlth, Riley Hosp Children, Div Crit Care Med, Indianapolis, IN USA
[5] Yale Univ, Sch Med, New Haven, CT USA