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Epidemiology and Infection|April 1, 1990
Plasmid profile typing can be used to subdivide phage-type 49 of Salmonella typhimurium in outbreak investigationsE J Threlfall, J A Frost, L R Ward, et al.
Journal of Clinical Pathology|March 28, 1998
Resistance to ciprofloxacin in pathogenic Enterobacteriaceae in England and Wales in 1996E J Threlfall, A Graham, T Cheasty, et al.
Journal of Medical Microbiology|December 1, 1993
Insertion sequence IS200 can differentiate drug-resistant and drug-sensitive Salmonella typhi of Vi-phage types E1 and M1E J Threlfall, E Torre, L R Ward, et al.
The Journal of Hygiene|April 1, 1983
Drug resistance among Escherichia coli strains isolated from cerebrospinal fluidR J Gross, L R Ward, E J Threlfall, et al.
British Medical Journal (Clinical Research Ed.)|August 14, 1982
Drug resistance among infantile enteropathogenic Escherichia coli strains isolated in the United KingdomR J Gross, L R Ward, E J Threlfall, et al.
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