1. Costs of clinical mastitis and mastitis prevention in dairy herds;Miller;J Am Vet Med Assoc,1993
2. USDA Dairy Part I: Reference of dairy health and management in the United States 2002
3. Incidence rate of clinical mastitis on Canadian dairy farms;Riekerink;J Dairy Sci,2008
4. Characteristics of dairy cows during episodes of bacteriologically negative clinical mastitis or mastitis caused by Corynebacterium spp;Morin;J Am Vet Med Assoc,1998