Estimated number of deaths directly averted in people 60 years and older as a result of COVID-19 vaccination in the WHO European Region, December 2020 to November 2021., Meslé, Margaux Mi, Brown Jeremy, Mook Piers, Hagan José, Pastore Roberta, Bundle Nick, Spiteri Gianfranco, Ravasi Giovanni, Nicolay Nathalie, Andrews Nick, et al. , Euro Surveill, 2021 11, Volume 26, Issue 47, (2021)