1. Liverpool Head & Neck Centre Liverpool University Hospitals NHS Foundation Trust Liverpool UK
2. The Royal Marsden Hospital London UK
3. Newcastle upon Tyne Hospitals NHS Foundation Trust Newcastle upon Tyne UK
4. Portsmouth Hospitals Portsmouth UK
5. University College London Hospitals NHS Foundation Trust London UK
6. Manchester Academic Health Sciences Centre (MAHSC) University of Manchester Manchester UK
7. University Hospitals Bristol & Weston NHS Foundation Trust Bristol UK
8. Department of Oncology and Metabolism University of Sheffield Sheffield UK
9. Oxford University NHS Foundation Trust Oxford UK
10. The Royal Marsden NHS Foundation Trust London UK
11. Freeman Hospital Newcastle Upon Tyne UK
12. Department of Speech, Voice and Swallowing The Royal Marsden NHS Foundation Trust London UK
13. Barts Health NHS Trust London UK
14. Greater Glasgow & Clyde Health Board Royal Alexandra Hospital and Queen Elizabeth University Hospital Glasgow UK
15. Guy’s & St Thomas’ NHS Foundation Trust/King’s College London London UK
16. London North West University Healthcare NHS Trust London UK
17. Nuffield Department of Surgical Sciences University of Oxford Oxford UK