1. Division of Surgery and Interventional Science, University College London, London, United Kingdom
2. Department of Urology, University College London Hospitals NHS Foundation Trust, Clinical Effectiveness Unit, London, United Kingdom
3. Department of Histopathology, University College London Hospitals NHS Foundation Trust, Clinical Effectiveness Unit, London, United Kingdom
4. Department of Imaging, University College London Hospitals NHS Foundation Trust, Clinical Effectiveness Unit, London, United Kingdom
5. Royal College of Surgeons of England, London, United Kingdom
6. Health Services Research Unit, London School of Hygiene and Tropical Medicine, London, United Kingdom