1. Department of Health Services Research and Policy, London School of Hygiene and Tropical Medicine, London, United Kingdom
2. Clinical Effectiveness Unit, Royal College of Surgeons of England, London, United Kingdom
3. Department of Oncology, The Christie NHS Foundation Trust, Manchester, United Kingdom
4. School of Medical Sciences, University of Manchester, United Kingdom
5. Department of Colorectal Surgery, Cambridge University Hospitals, Cambridge, United Kingdom
6. Institute of Cancer Policy, King’s College London, London, United Kingdom
7. Department of Oncology, Guy’s & St Thomas’ NHS Trust, London, United Kingdom