1. The Institute of Cancer Research, Division of Radiotherpy and Imaging and The Royal Marsden Hospital, Radiotherapy Department, London, United Kingdom
2. The Institute of Cancer Research, Division of Radiotherapy and Imaging and The Royal Marsden NHS Foundation Trust, Radiotherapy Department, London, United Kingdom
3. Institute of Cancer Research, Clinical Trials and Statistics Unit, London, United Kingdom
4. Lancashire Teaching Hospitals NHS Foundation Trust, Preston, United Kingdom
5. The Institute of Cancer Research, Clinical Trials and Statistics Unit, London, United Kingdom
6. The Christie NHS Foundation Trust, Translational Radiobiology and University of Manchester, Manchester, United Kingdom
7. Austin Health, Radiation Oncology, Austin, Australia
8. The Institute of Cancer Research, London, United Kingdom
9. Leeds Teaching Hospitals NHS Trust, Division of Cancer Studies and Pathology, Leeds, United Kingdom
10. Canterbury District Health Board, Department of Oncology Services, Christchurch, New Zealand
11. NHS Lothian, Department of Oncology, Edinburgh, United Kingdom
12. Sussex Cancer Centre, Brighton, United Kingdom
13. Lancashire Teaching Hospitals NHS Trust, Oncology, Burnley, United Kingdom
14. Clatterbridge Cancer Centre, Department of Radiotherapy, Liverpool, United Kingdom
15. Royal Devon & Exeter NHS Foundation Trust, Department of Oncology, Exeter, United Kingdom
16. National Radiotherapy Trials Quality Assurance Group and University College Hospital, London, United Kingdom