Rapid spread of drug-resistant influenza A viruses in the Basque Country, northern Spain, 2000-1 to 2008-9
Vicente, D and Cilla, G and Montes, M and Mendiola, J and Pérez-Trallero, E, Eurosurveillance, 14, 19215 (2009), https://doi.org/10.2807/ese.14.20.19215-en