Hepatitis B prevalence in Denmark – an estimate based on nationwide registers and a national screening programme, as on 31 December 2007 Hansen, N and Hay, G and Cowan, S and Jepsen, P and Bygum Krarup, H and Obel, N and Weis, N and Brehm Christensen, P, Eurosurveillance, 18, 20637 (2013), https://doi.org/10.2807/1560-7917.ES2013.18.47.20637