title: Reversion and transferability of nontransmissive R-factor.
mesh_terms: D003091:Colistin / Q000494:pharmacology; D004352:Drug Resistance, Microbial; D015643:Erythromycin Ethylsuccinate / Q000494:pharmacology; D004926:Escherichia coli / Q000187:drug effects*; D006824:Hybridization, Genetic; D009154:Mutation; D011995:Recombination, Genetic / Q000187:drug effects; D012763:Shigella flexneri / Q000187:drug effects*; D012764:Shigella sonnei / Q000187:drug effects*; D013307:Streptomycin / Q000494:pharmacology; D013752:Tetracycline / Q000494:pharmacology
chemical_list: D015643:Erythromycin Ethylsuccinate; D013752:Tetracycline; D013307:Streptomycin; D003091:Colistin