[1] Queens Univ, Dept Anesthesiol & Perioperat Med, Kingston, ON, Canada
[2] Kingston Hlth Sci Ctr, Dept Anesthesiol & Perioperat Med, Kingston Gen Hosp Site,76 Stuart St, Kingston, ON K7L 2V7, Canada
[3] Queens Univ, Fac Hlth Sci, Off Profess Dev & Educ Scholarship, Kingston, ON, Canada
[4] Queens Univ, Dept Crit Care Med, Kingston, ON, Canada
[5] Queens Univ, Dept Emergency Med, Kingston, ON, Canada
[6] Queens Univ, Dept Psychol, Kingston, ON, Canada
[7] Queens Univ, Kingston, ON, Canada
[8] Univ British Columbia, Fac Med, Div Neurosurg, Vancouver, BC, Canada