Institute of Cancer Research (ICR) - Division of Genetics and Epidemiology, Institute of Cancer Research (ICR) - Division of Genetics and Epidemiology, Public Health England - National Cancer Registration and Analysis Service, West London Cancer Alliance - RM Partners, Institute of Cancer Research (ICR) - Division of Genetics and Epidemiology, Institute of Cancer Research (ICR) - Division of Genetics and Epidemiology, Institute of Cancer Research (ICR) - Division of Genetics and Epidemiology, Royal Marsden NHS Foundation Trust - Urology Unit, Royal Marsden NHS Foundation Trust - Department of Anaesthesia, Oxford University Hospitals NHS Foundation Trust - Department of Colorectal Surgery, Imperial College Healthcare NHS Trust - Department of Clinical Oncology, Public Health England - National Cancer Registration and Analysis Service, West London Cancer Alliance - RM Partners, Imperial College London - School of Public Health, West London Cancer Alliance - RM Partners, Queen's University Belfast - School of Medicine, Dentistry & Biomedical Science, Queen's University Belfast - School of Medicine, Dentistry & Biomedical Science, Imperial College London - School of Public Health, NHS Foundation Trust - Croydon University Hospital, Institute of Cancer Research (ICR) - Division of Genetics and Epidemiology and Institute of Cancer Research (ICR) - Division of Genetics and Epidemiology