
https://www.thelancet.com/pdfs/journals/lancet/PIIS0140-6736(20)32290-X.pdf

http://www2.assemblee-nationale.fr/documents/notice/15/rapports/r0684/(index)/rapports

https://inews.co.uk/news/coronavirus-testing-countries-test-covid-19-figures-uk-approach-compared-414415