1. Wessex Neurological Centre, University Hospitals Southampton NHS Foundation Trust, Southampton, UK
2. Department of Neurosurgery, Belfast Health and Social Care Trust, Belfast, UK
3. Department of Neurosurgery, Leeds Teaching Hospitals NHS Trust, Leeds, UK
4. Sheffield Centre for Neurosurgery, Sheffield Teaching Hospitals NHS Foundation Trust, Sheffield, UK
5. Department of Neurosurgery, Hull and East Yorkshire Hospitals NHS Trust, Hull, UK
6. Department of Neurosurgery, University Hospital of North Midlands NHS Trust, Stoke on Trent, UK
7. Department of Neurosurgery, Queens Medical Centre, Nottingham, UK
8. Department of Clinical Neurosciences, University of Edinburgh, Edinburgh, UK
9. Department of Neurosurgery, Cardiff and Vale University Health Board, Cardiff, UK
10. Department of Neurosurgery, Barking, Havering and Redbridge University Hospitals NHS Trust, Romford, UK
11. Department of Neurourgery, Lancashire Teaching Hospitals NHS Foundation Trust, Preston, UK
12. Neurosurgery Department, NHS Grampian, Aberdeen, UK
13. Department of Neurosurgery, St George’s University Hospitals NHS Foundation Trust, London, UK
14. Department of Neurosurgery, Newcastle Upon Tyne Hospitals NHS Foundation Trust, Newcastle Upon Tyne, UK
15. Department of Neurosurgery, Ninewells Hospital and Medical School, Dundee, UK
16. Department of Neurosurgery, South Tees Hospitals NHS Foundation Trust, Middlesbrough, UK
17. Department of Neurosurgery, Imperial College Healthcare NHS Trust, London, UK
18. Hurstwood Park Neurosciences Centre, Brighton and Sussex University Hospitals NHS Trust, Brighton, UK
19. Department of Neurosurgery, Salford Royal NHS Foundation Trust, Salford, UK
20. Department of Neurosurgery, Oxford University Hospitals NHS Foundation Trust, Oxford, UK
21. Department of Neurosurgery, University Hospitals Coventry and Warwickshire, Coventry, UK
22. Institute of Neurosciences, Glasgow, UK
23. Department of Neurosurgery, North Bristol NHS Trust, Bristol, UK
24. National Hospital for Neurology and Neurosurgery, University College London Hospitals NHS Foundation Trust, London, UK
25. Department of Neurosurgery, Cambridge University Hospitals NHS Foundation Trust, Cambridge, UK
26. Department of Neurosurgery, Barts Health NHS Trust, London, UK
27. Department of Neurosurgery, The Walton Centre NHS Foundation Trust, Liverpool, UK
28. Department of Neurosurgery, King’s College Hospital NHS Trust, London, UK
29. Department of Neurosurgery, Queen Elizabeth Hospital, Birmingham, UK
30. Department of Neurosurgery, University Hospitals Plymouth NHS Trust, Plymouth, UK