[1] Brigham & Womens Hosp, Div Pulm & Crit Care Med, Boston, MA USA
[2] Thomas Jefferson Univ, Rector Clin Skills & Simulat Ctr, Philadelphia, PA USA
[3] Vituity, Dept Emergency Med, Wichita, KS USA
[4] Univ Kansas Sch Med, Wichita, KS USA
[5] Univ Alabama Birmingham, UAB Lib, Birmingham, AL USA
[6] Univ Alabama Birmingham, Dept Anesthesiol & Perioperat Med, Birmingham, AL USA
[7] Brigham & Womens Hosp, Div Pulm & Crit Care Med, 75 Francis St, Boston, MA 02115 USA