Hart, E., Lakerveld, J., McKee, M., Oppert, J., Rutter, H., Charreire, H., … Mackenbach, J. Contextual correlates of happiness in European adults. PloS One, 13(1), e0190387. https://doi.org/10.1371/journal.pone.0190387 (Original work published 2018)

Steel, N., Ford, J., Newton, J., Davis, A., Vos, T., Naghavi, M., … Murray, C. (2018). Changes in health in the countries of the UK and 150 English Local Authority areas 1990-2016: a systematic analysis for the Global Burden of Disease Study 2016. Lancet (London, England), 392(10158), 1647-1661. https://doi.org/10.1016/S0140-6736(18)32207-4 (Original work published 2018)