1. Wolfson Brain Injury Unit, Addenbrooke's Hospital Foundation Trust, Cambridge, United Kingdom.
2. Department of Academic Neurosurgery, Addenbrooke's Hospital Foundation Trust, Cambridge, United Kingdom.
3. Department of Radiology, Addenbrooke's Hospital Foundation Trust, Cambridge, United Kingdom.
4. Department of Anaesthetics, Addenbrooke's Hospital Foundation Trust, Cambridge, United Kingdom.