1. Section of Neurosurgery, Department of Surgery, University of Manitoba, Winnipeg, MB, Canada R3A 1R9
2. Section of Critical Care Medicine, Department of Medicine, University of Manitoba, Winnipeg, MB, Canada R3A 1R9
3. Section of General Surgery, Department of Surgery, University of Manitoba, Winnipeg, MB, Canada R3A 1R9
4. Section of Neurocritical Care, Montreal Neurological Institute, McGill University, Montreal, QC, Canada H3A 2B4
5. Section of Neurology, Montreal Neurological Institute, McGill University, Montreal, QC, Canada H3A 2B4