RT Journal Article SR Electronic(1) A1 Savulescu, C A1 Jiménez-Jorge, S A1 de Mateo, S A1 Ledesma, J A1 Pozo, F A1 Casas, I A1 Larrauri, A A1 cycEVA Study Team, Collective YR 2011 T1 Effectiveness of the 2010/11 seasonal trivalent influenza vaccine in Spain: preliminary results of a case–control study JF Eurosurveillance VO 16 IS 11 SP 19820 OP DO https://doi.org/10.2807/ese.16.11.19820-en UL https://www.eurosurveillance.org/content/10.2807/ese.16.11.19820-en