http://www.nhsconfed.org/-/media/Confederation/Files/public-access/Securing-the-future.pdf?dl=1
https://publications.parliament.uk/pa/cm201719/cmselect/cmbeis/379/379.pdf
https://www.rte.ie/news/analysis-and-comment/2017/1117/920981-long-read-brexit/?utm_source=POLITICO.EU&utm_campaign=693f844ad1-EMAIL_CAMPAIGN_2017_11_20&utm_medium=email&utm_term=0_10959edeb5-693f844ad1-189647205
https://institute.global/sites/default/files/2020-07/Tony%20Blair%20Institute%2C%20A%20Path%20to%20Brexit%20Agreement%2C%20July%202020.pdf