1. Department of Urology, Addenbrooke's Hospital, Cambridge University, Cambridge, United Kingdom.
2. Division of Surgery and Interventional Science, University College London, Royal Free Hospital, London, United Kingdom.
3. Specialist Center for Kidney Cancer, Department of Urology, Royal Free Hospital, London, United Kingdom.
4. Department of Urology, Peterborough City Hospital, Peterborough, United Kingdom.
5. Cancer Research UK–Cambridge Institute, University of Cambridge, Cambridge, United Kingdom.