1. Hull York Medical School, University of Hull, Hull, United Kingdom.
2. School of Health and Related Research, University of Sheffield, Sheffield, United Kingdom.
3. Hull York Medical School, John Hughlings Jackson Building, University of York, Heslington, United Kingdom.
4. Division of Neurosurgery, Department of Clinical Neurosciences, Addenbrooke's Hospital and University of Cambridge, Cambridge, United Kingdom; NIHR Global Health Research Group on Neurotrauma, University of Cambridge, Cambridge, United Kingdom.
5. Emergency Department, Salford Royal Hospital, Salford Royal NHS Foundation Trust, Salford, United Kingdom.
6. Salford Royal Hospital, Acute Research Delivery Team, Salford Royal NHS Foundation Trust, Salford, United Kingdom.
7. Emergency Department, Hull University Teaching Hospitals NHS Trust, Hull, United Kingdom.
8. Department of Health Sciences, University of York, Alcuin Research Resource Centre, Heslington, United Kingdom.