Effectiveness of the 2010/11 seasonal trivalent influenza vaccine in Spain: preliminary results of a case–control study
Savulescu, C and Jiménez-Jorge, S and de Mateo, S and Ledesma, J and Pozo, F and Casas, I and Larrauri, A and cycEVA Study Team, Collective, Eurosurveillance, 16, 19820 (2011), https://doi.org/10.2807/ese.16.11.19820-en