1. Division of Radiotherapy and Imaging, The Institute of Cancer Research; Cancer Research UK Cancer Imaging Centre; London SM2 5NG UK
2. Department of Medical Physics and Bioengineering; UCL, Centre for Medical Image Computing (CMIC); London WC1E 7JE UK
3. Department of Non-Communicable Disease Epidemiology; London School of Hygiene & Tropical Medicine; London WC1E 7HT UK