Low vaccine effectiveness against influenza A(H3N2) virus among elderly people in Denmark in 2012/13 – a rapid epidemiological and virological assessment
Bragstad, K and Emborg, H D and Fischer, T K and Voldstedlund, M and Gubbels , S and Andersen, B and Mølbak, K and Krause, T G, Eurosurveillance, 18, 20397 (2013), https://doi.org/10.2807/ese.18.06.20397-en