1 Division of Genetics and Epidemiology, Institute of Cancer Research, Royal Marsden NHS Trust, London SW3 6JJ, UK. Electronic address: clare.turnbull@icr.ac.uk.
2 Institute of Health Informatics, University College London, London, UK.
3 Institute of Cancer Policy (Global Oncology Group), King's College London, London, UK.
4 Department of Computational Biomedicine, Cedars Sinai Medical Center, Los Angeles, CA, USA.
5 Division of Genetics and Epidemiology, Institute of Cancer Research, Royal Marsden NHS Trust, London SW3 6JJ, UK.
6 Department of Health Services Research and Policy, London School of Hygiene and Tropical Medicine, Guy's and St Thomas' NHS Trust, London, UK.
7 Department of Sociology, University of Cambridge, Cambridge, UK.
8 Population and Behavioural Science Division, School of Medicine, University of St Andrews, St Andrews, UK; Fulton Street Medical Centre Glasgow, Glasgow, UK.