1. Anon., 1972. Laboratory Methods in Veterinary Mycobacteriology for the Isolation and Identification of Mycobacteria. National Animal Disease Laboratory, Ames, IA.
2. Molecular characterization of Mycobacterium paratuberculosis isolates from sheep, goats, and cattle by hybridization with a DNA probe to insertion element IS900;Bauerfeind;J. Clin. Microbiol.,1996
3. Cannon, R.M., Roe, R.T., 1982. Livestock Disease Surveys: A Field Manual for Veterinarians. Australian Government Publishing Service, Canberra.
4. Accuracy and economics of the USDA-licensed enzyme-linked immunosorbent assay for bovine paratuberculosis;Collins;J. Am. Vet. Med. Assoc.,1993
5. Identification of two groups of Mycobacterium paratuberculosis strains by restriction endonuclease analysis and DNA hybridization;Collins;J. Clin. Microbiol.,1990