1. Department of Neurosurgery, St. Vincent’s Hospital, Melbourne, Australia;
2. Department of Neurosurgery, National Trauma Research Institute, Melbourne, Australia;
3. Department of Neurosurgery, Addenbrooke’s Hospital, NHS Foundation Trust, Cambridge, UK;
4. Department of Neurosurgery, The Alfred Hospital, Melbourne, Australia;
5. Department of Neuroradiology, St. Vincent’s Hospital, Melbourne, Australia