1. Institute for Environmental Design and Engineering, Bartlett School of Environment, Energy and Resources, University College London, Central House, 14 Upper Woburn Place, London WC1H 0NN, UK
2. Academic Foundation Programme, North Central and East London Foundation School, Health Education England, Stewart House, 32 Russell Square, Bloomsbury, London, UK
3. Centre for Public Health Data Science, Institute of Health Informatics, University College London, 222 Euston Road, London, NW1 2DA, UK
4. Faculty of Population Health Sciences, University College London, 149 Tottenham Court Road, London, W1T 7BN, UK
5. Institute of Epidemiology and Health Care, University College London, 1-19 Torrington Place, London, WC1E 7HB, UK
6. Institute for Global Health, University College London, Mortimer Market Centre, Capper Street, London, WC1E 6JB, UK