1 Imperial Prostate, Division of Surgery, Department of Surgery and Cancer, Faculty of Medicine, Imperial College London, United Kingdom.
2 Imperial Prostate, Division of Surgery, Department of Surgery and Cancer, Faculty of Medicine, Imperial College London, United Kingdom; Imperial Urology, Charing Cross Hospital, Imperial College Healthcare NHS Trust, London, United Kingdom. Electronic address: [email protected].
3 Department of Urology, Wycombe Hospital, Buckinghamshire Healthcare NHS Trust, High Wycombe, HP11 2T, United Kingdom.