Influenza-associated hospitalisations in Finland from 1996 to 2010: unexpected age-specific burden during the influenza A(H1N1)pdm09 pandemic from 2009 to 2010
Jacks, A and Ollgren, J and Ziegler, T and Lyytikäinen, O, Eurosurveillance, 17, 20276 (2012), https://doi.org/10.2807/ese.17.38.20276-en