%0 Journal Article %A Martínez-Baz, Iván %A Navascués, Ana %A Casado , Itziar %A Aguinaga, Aitziber %A Ezpeleta, Carmen %A Castilla , Jesús %T Simple models to include influenza vaccination history when evaluating the effect of influenza vaccination %D 2021 %J Eurosurveillance %V 26 %N 32 %P 2001099 %R doi:https://doi.org/10.2807/1560-7917.ES.2021.26.32.2001099 %K influenza vaccine %K repeated vaccination %K prior vaccination %K modifying effect %K influenza vaccine effectiveness %K influenza vaccination effect %U https://www.eurosurveillance.org/content/10.2807/1560-7917.ES.2021.26.32.2001099