Early and unexpectedly severe start of influenza epidemic in the Czech Republic during influenza season 2012-13
Kyncl, J and Havlickova, M and Nagy, A and Jirincova, H and Piskova, I, Eurosurveillance, 18, 20396 (2013), https://doi.org/10.2807/ese.18.06.20396-en