Two outbreaks of norovirus infections associated with the consumption of imported frozen raspberries, Denmark, May-June 2005 Korsager, B and Hede, S and Bøggild, H and Böttiger, B E and Mølbak, K, Weekly releases (1997–2007), 10, 2729 (2005), https://doi.org/10.2807/esw.10.25.02729-en