title: Segregation of R-plasmids in Escherichia coli K-12 rifampicin-resistant mutants.
mesh_terms: D000667:Ampicillin / Q000494:pharmacology; D000900:Anti-Bacterial Agents / Q000494:pharmacology; D004926:Escherichia coli / Q000187:drug effects* / Q000235:genetics; D009154:Mutation; D009268:Nalidixic Acid / Q000494:pharmacology; D011815:R Factors; D012293:Rifampin / Q000494:pharmacology*; D013449:Sulfonamides / Q000494:pharmacology; D014295:Trimethoprim / Q000494:pharmacology
chemical_list: D000900:Anti-Bacterial Agents; D013449:Sulfonamides; D009268:Nalidixic Acid; D000667:Ampicillin; D014295:Trimethoprim; D012293:Rifampin