1. Bladder Cancer Research Centre, Institute of Cancer and Genomic Sciences, University of Birmingham, Birmingham, United Kingdom
2. Cancer Research UK Clinical Trials Unit, Institute of Cancer and Genomic Sciences, University of Birmingham, United Kingdom
3. Department of Urology, The Royal Wolverhampton NHS Trust, Wolverhampton, United Kingdom
4. MAC Clinical Research, Lancashire, United Kingdom
5. Birmingham Clinical Trials Unit, Institute of Applied Health Research, University of Birmingham, United Kingdom
6. Institute of Metabolism and Systems Research, University of Birmingham, United Kingdom
7. Department of Urology, University Hospitals Birmingham NHS Foundation Trust, Birmingham, United Kingdom
8. Prostate and Bladder Cancer Research Team, The Institute of Cancer Research, London, United Kingdom
9. Department of Epidemiology, Maastricht University, Maastricht, the Netherlands
10. MPB holding, Heerlen, the Netherlands
11. Institute of Applied Health Research, University of Birmingham, United Kingdom
12. for the SELENIB Investigators