Effectiveness of seasonal 2008–2009, 2009–2010 and pandemic vaccines, to prevent influenza hospitalizations during the autumn 2009 influenza pandemic wave in Castellón, Spain. A test-negative, hospital-based, case-control study - Joan Puig-Barberàa, J; Arnedo-Penac, A; Pardo-Serranod, F (Vaccine, 2010)
et al.