1. Urology Department, Whipps Cross University Hospital, Barts Health NHS Trust, UK
2. Urology Department, Kings College Hospital, UK
3. Urology Department, University Hospitals of Derby and Burton, UK
4. Health Services Research and Policy, London School of Hygiene and Tropical Medicine, UK
5. Clinical Effectiveness Unit, The Royal College of Surgeons of England, UK
6. Chaucer Hospital, UK
7. James Cook University Hospital, South Tees Hospitals NHS Foundation Trust, UK