title: Joint trimethoprim and sulphamethoxazole resistance in bacteria infected with R factors.
mesh_terms: D000900:Anti-Bacterial Agents / Q000494:pharmacology*; D003470:Culture Media; D004352:Drug Resistance, Microbial; D004926:Escherichia coli / Q000187:drug effects* / Q000302:isolation & purification; D005111:Extrachromosomal Inheritance; D005493:Folic Acid Antagonists / Q000494:pharmacology*; D008826:Microbial Sensitivity Tests; D009154:Mutation; D011743:Pyrimidines / Q000494:pharmacology*; D012475:Salmonella / Q000187:drug effects*; D012477:Salmonella enteritidis / Q000187:drug effects / Q000302:isolation & purification; D012486:Salmonella typhimurium / Q000187:drug effects / Q000302:isolation & purification; D013420:Sulfamethoxazole / Q000494:pharmacology*; D013936:Thymidine; D013941:Thymine; D014295:Trimethoprim / Q000494:pharmacology
chemical_list: D000900:Anti-Bacterial Agents; D003470:Culture Media; D005493:Folic Acid Antagonists; D011743:Pyrimidines; D014295:Trimethoprim; D013420:Sulfamethoxazole; D013941:Thymine; D013936:Thymidine