1. Department of Surgery and Cancer, Imperial College London, Hammersmith Hospital, London, United Kingdom
2. Department of Oncology, Imperial College NHS Trust, Charing Cross Hospital, London, United Kingdom
3. Tokyo Medical and Dental University, Tokyo, Japan
4. Department of Oncology, Chelsea and Westminster Hospital, London, United Kingdom
5. Cardiovascular Epidemiology Unit, Department of Public Health and Primary Care, School of Clinical Medicine, University of Cambridge, Cambridge, United Kingdom