The age-specific impact of influenza on hospital admissions and mortality in five countries in Europe.

Nielen, M.M.J., Spreeuwenberg, P., Paget, W.J., Donker, G.A., Meijer, A., Schellevis, F.G., Fleming, D., Elliot, A., Mosnier, A., Cohen, J.M., Werf, S. van der, Lina, B., Nunes, B., Marinho Falcão, J., Rebelo-de-Andrade, H., Jiménez-Jorge, S., López-Cuadrado, T., Larrauri Cámara, A. The age-specific impact of influenza on hospital admissions and mortality in five countries in Europe. Utrecht: NIVEL, 2010.