title: R factors and colicins in Escherichia coli strains causing infections of the urinary apparatus.
mesh_terms: D000900:Anti-Bacterial Agents / Q000494:pharmacology; D002954:Citrobacter / Q000187:drug effects; D003087:Colicins / Q000032:analysis*; D004352:Drug Resistance, Microbial; D004926:Escherichia coli / Q000032:analysis* / Q000187:drug effects; D005111:Extrachromosomal Inheritance; D006801:Humans; D012703:Serotyping; D014552:Urinary Tract Infections / Q000382:microbiology*
chemical_list: D000900:Anti-Bacterial Agents; D003087:Colicins