1Nuffield Department of Surgical Sciences, University of Oxford, Oxford, UK
2Bristol Randomised Trials Collaboration (BRTC), Bristol Trials Centre, University of Bristol, Bristol, UK
3Bristol Medical School, University of Bristol, Bristol, UK
4Centre for Statistics in Medicine, Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, University of Oxford, Oxford, UK
5School of Medicine, Cardiff University, Cardiff, UK
6Department of Urology & Surgery, Western General Hospital, University of Edinburgh, Edinburgh, UK
7Academic Urology Unit, University of Sheffield, Sheffield, UK
8Department of Urology, Queen Elizabeth Hospital, Birmingham, UK
9Department of Urology, Southmead Hospital and Bristol Urological Institute, Bristol, UK
10Academic Urology Group, Department of Surgery & Cambridge Urology Translational Research and Clinical Trials, Cambridge Biomedical Campus, University of Cambridge, Cambridge, UK
11Department of Urology, Cardiff and Vale University Health Board, Cardiff, UK
