1. Department of Emergency Medicine; Centre hospitalier universitaire de Sherbrooke; Sherbrooke Quebec Canada
2. Department of Surgery; University of Sherbrooke; Sherbrooke Quebec Canada
3. Department of Epidemiology and Community Medicine; University of Ottawa; Ottawa Ontario Canada
4. Cardiovascular Research Methods Center, University of Ottawa Heart Institute; Ottawa Ontario Canada
5. Neuropsychology Program of the Trauma and Critical Care Group; Centre hospitalier universitaire de Sherbrooke; Sherbrooke Quebec Canada