The impact of public health interventions in the Nordic countries during the first year of SARS-CoV-2 transmission and evolution Duchene, Sebastian and Featherstone, Leo and Freiesleben de Blasio, Birgitte and Holmes, Edward C and Bohlin, Jon and Pettersson, John H-O, Eurosurveillance, 26, 2001996 (2021), https://doi.org/10.2807/1560-7917.ES.2021.26.44.2001996