1. From the Division of Neurosurgery, Department of Surgery, University of British Columbia, Vancouver, Canada (O.G.S.A., P.A.G.)
2. Division of Neurosurgery, Hospital for Sick Children (G.M.I.)
3. Department of Surgery, Li Ka Shing Knowledge Institute (N.M.A., R.L.M.)
4. Institute of Medical Science (N.M.A.), University of Toronto, Canada
5. Division of Neurosurgery, Labatt Family Centre of Excellence in Brain Injury and Trauma Research, Keenan Research Centre for Biomedical Research, St. Michael’s Hospital, Toronto, Canada (N.M.A., R.L.M.).