1. University College London, Torrington Place, London, UK
2. University of Exeter Medical School, St Luke’s Campus, Heavitree Road, Exeter, UK
3. National Cancer Registration and Analysis Service, Public Health England Zone A, 2nd Floor, Skipton House, 80 London Road, London, UK
4. Institute of Health and Society, Newcastle University, Sir James Spence Institute, Royal Victoria Infirmary, Newcastle upon Tyne, UK