1. Robust regression and outlier detection with the ROBUSTREG procedure;Chen,2002
2. Immunology: Resistance to paratuberculosis;Chiodini;Vet. Clin. North Am. Food Anim. Pract.,1996
3. Ruminant paratuberculosis (Johne's disease): The current status and future prospects;Chiodini;Cornell Vet.,1984
4. Susceptibility to Johne's disease in relation to age;Doyle;Vet. Rec.,1953
5. European Economic Community. 1992. Council Directive 92/46/EEC of 16 June 1992 laying down the health rules for the production and placing on the market of raw milk, heat-treated milk and milk-based products. Off. J. L 268, 14/09/1992, 0001–0031.