[1]Department of Surgery, Universite de Sherbrooke, Sherbrooke, Quebec, Canada;
[2]Critical Care Department, Dr Everett Chalmers Hospital, Horizon Health Authority, New Brunswick, Canada;
[3]Vitalite Health Authority, North West Zone, New Brunswick, Canada;
[4]Department of Critical Care-Internal Medicine, Dalhousie University, Halifax, Nova Scotia, Canada;