1 Centre for Health Economics, University of York, York, UK. Electronic address: [email protected].
2 Centre for Health Economics, University of York, York, UK.
3 University of Calgary, Calgary, Alberta, Canada.
4 Imperial Urology-Division of Surgery, Imperial College London, London, UK; Imperial Urology, Imperial College Healthcare NHS Trust, London, UK.
5 Medical Research Council Clinical Trials Unit at University College London, London, UK.
6 Division of Surgery and Interventional Science, Faculty of Medical Sciences, University College London, London, UK; Department of Urology, University College London Hospitals NHS Foundation Trust, London, UK.