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American Journal of Veterinary Research|December 1, 1983
Leptospiral vaccines: immunogenicity of protein-free medium cultivated whole cell bacterins in swineR F Bey, R C Johnson
Wisconsin Medical Journal|December 1, 1990
Borrelia lymphocytoma: a possible North American caseM F Finkel, R C Johnson
Applied Microbiology|May 1, 1972
Cultivation of leptospires: fatty acid requirementsR C Johnson, J K Walby
The British Journal of Venereal Diseases|June 1, 1980
Influence of testicular fluid infected with Treponema pallidum on intradermal lesionsT J Fitzgerald, R C Johnson
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