The effectiveness of influenza vaccination in preventing hospitalizations of elderly individuals in two influenza seasons: a multicentre case-control study, Spain, 2013/14 and 2014/15
Domínguez A, Soldevila N, Toledo D, Godoy P, Espejo E, Fernández M et al. Euro Surveill. 2017;22(34): pii=30602 Estudio de casos y controles realizado en…
