title: Persistence of tetracycline resistance in pig E. coli.
mesh_terms: D000818:Animals; D000900:Anti-Bacterial Agents / Q000494:pharmacology; D004352:Drug Resistance, Microbial; D004926:Escherichia coli / Q000187:drug effects*; D005243:Feces / Q000382:microbiology; D013307:Streptomycin / Q000494:pharmacology; D013552:Swine / Q000382:microbiology*; D013752:Tetracycline / Q000494:pharmacology; D013997:Time Factors
chemical_list: D000900:Anti-Bacterial Agents; D013752:Tetracycline; D013307:Streptomycin