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The Journal of Infectious Diseases|December 1, 1990
Occurrence of secondary attenuating mutations in avirulent Salmonella typhimurium vaccine strainsH A Lockman, R Curtiss
Proceedings of the National Academy of Sciences of the United States of America|October 1, 1996
Unique chromosomal regions associated with virulence of an avian pathogenic Escherichia coli strainP K Brown, R Curtiss
Infection and Immunity|January 1, 1990
Salmonella typhimurium mutants lacking flagella or motility remain virulent in BALB/c miceH A Lockman, R Curtiss
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