RANKIN, J D Confirmation of a calculated ID50 of Mycobacterium johnei for the experimental production of Johne's disease in cattle. [electronic resource] - The Journal of pathology and bacteriology Apr 1961 - 539 p. digital Publication Type: Journal Article ISSN: 0368-3494 Standard No.: 10.1002/path.1700810232 doi Subjects--Topical Terms: AnimalsCattleCattle DiseasesMycobacterium avium subsp. paratuberculosisParatuberculosis