1. Division of Surgery and Interventional Science; University College London; London UK
2. Department of Urology; University College London Hospital; London UK
3. Surgical and Interventional Trials Unit; University College London; London UK
4. UCL Cancer Institute; London UK
5. Department of Urology; Royal Surrey County Hospital; Guildford UK
6. Department of Urology; James Cook University Hospital; Middlesbrough UK
7. Department of Urology; East Surrey Hospital; Redhill UK
8. Department of Urology; Worthing Hospital; Worthing UK
9. Department of Urology; Northwick Park Hospital; London UK
10. Department of Urology; Salisbury District Hospital; Salisbury UK
11. Department of Urology; East Lancashire Hospital; Blackburn UK
12. Department of Urology; Royal Bolton Hospital; Bolton UK
13. Department of Urology; Kettering General Hospital; Kettering UK