Combined effectiveness of prior and current season influenza vaccination in northern Spain: 2016/17 mid-season analysis
Castilla, Jesús and Navascués, Ana and Casado, Itziar and Díaz-González, Jorge and Pérez-García, Alejandra and Fernandino, Leticia and Martínez-Baz, Iván and Aguinaga, Aitziber and Pozo, Francisco and Ezpeleta, Carmen and Primary Health Care Sentinel Network and the Network for Influenza Surveillance in Hospitals of Navarre, Eurosurveillance, 22, 30465 (2017), https://doi.org/10.2807/1560-7917.ES.2017.22.7.30465