Seasonal influenza immunisation in Europe. Overview of recommendations and vaccination coverage for three seasons: pre-pandemic (2008/09), pandemic (2009/10) and post-pandemic (2010/11) Mereckiene, J and Cotter, S and Nicoll, A and Lopalco, P and Noori, T and Weber, J T and D'Ancona, F and Lévy-Bruhl, D and Dematte, L and Giambi, C and Valentiner-Branth , P and Stankiewicz, I and Appelgren, E and O’Flanagan, D and the VENICE project gatekeepers group, Collective, Eurosurveillance, 19, 20780 (2014), https://doi.org/10.2807/1560-7917.ES2014.19.16.20780