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2. Enterococcus. Determination in Foods;Anonymous,1992
3. International Standard – ISO 6579: 2002(E). Microbiology of Food and Animal Feeding Stuffs – Horizontal Method for the Detection of Salmonella Spp;Anonymous,2002
4. Annual Report on Zoonoses in Denmark 2006;Anonymous,2006
5. Annual Report on Zoonoses in Denmark 2007;Anonymous,2007