Influenza vaccine effectiveness in reducing severe outcomes over six influenza seasons, a case-case analysis, Spain, 2010/11 to 2015/16
Godoy, Pere and Romero, Arantxa and Soldevila, Núria and Torner, Nuria and Jané, Mireia and Martínez, Ana and Caylà, Joan A and Rius, Cristina and Domínguez, Angela and The Working Group on Surveillance of Severe Influenza Hospitalized Cases in Catalonia, Eurosurveillance, 23, 1700732 (2018), https://doi.org/10.2807/1560-7917.ES.2018.23.43.1700732