Relation between Q fever notifications and Coxiella burnetii infections during the 2009 outbreak in the Netherlands van der Hoek, W and Hogema, B M and Dijkstra, F and Rietveld, A and Wijkmans, C J and Schneeberger, P M and Zaaijer, H L, Eurosurveillance, 17, 20058 (2012), https://doi.org/10.2807/ese.17.03.20058-en