
https://www.europarl.europa.eu/resources/library/media/20201020RES89705/20201020RES89705.pdf

https://www.thelancet.com/action/showPdf?pii=S0140-6736%2820%2930461-X

http://www.ecreu.com/pdfs/alternative-white-paper-presented-by-UK-%20citizens-in-europe.pdf