1. Centre for Surgical Research, School of Social and Community Medicine, University of Bristol
2. Division of Surgery, Head and Neck, University Hospitals NHS Foundation Trust, Bristol, UK
3. Department of Medical Psychology, Academic Medical Centre, University of Amsterdam, Amsterdam, The Netherlands
4. University of Bristol, Bristol, UK
5. Oesophageal Patients Association, Bristol, UK
6. Academic Medical Centre, Amsterdam, The Netherlands
7. University Medical Centre, Rotterdam, The Netherlands
8. University Hospitals Bristol NHS Foundation Trust, Bristol, UK
9. Plymouth Hospitals NHS Trust, Plymouth, UK
10. University of Southampton, Southampton, UK
11. Gloucester Hospitals NHS Foundation Trust, Gloucester, UK
12. Wythenshawe Hospital, Manchester, UK
13. Newcastle upon Tyne NHS Foundation Trust, Newcastle upon Tyne, UK
14. Princess of Wales Hospital, Bridgend, UK
15. Royal Infirmary of Edinburgh, Edinburgh, UK
16. Abertawe Bro Morgannwg University Health Board, Swansea, UK
17. Royal Berkshire NHS Foundation Trust, Reading, UK
18. Yeovil District Hospital NHS Foundation Trust, Yeovil, UK
19. Lancashire Teaching Hospitals NHS Foundation Trust, Lancashire, UK
20. Liverpool Heart and Chest NHS Foundation Trust, Liverpool, UK
21. University Hospitals Birmingham NHS Foundation Trust, Birmingham, UK
22. University of Liverpool, Liverpool, UK