title: Antibiotic resistance: the present situation reviewed.
mesh_terms: D000821:Animal Feed; D000818:Animals; D000900:Anti-Bacterial Agents / Q000494:pharmacology*; D002417:Cattle / Q000382:microbiology; D002701:Chloramphenicol / Q000494:pharmacology; D004352:Drug Resistance, Microbial; D004926:Escherichia coli / Q000187:drug effects; D005516:Food Microbiology; D006801:Humans; D008460:Meat; D011200:Poultry / Q000382:microbiology; D011815:R Factors; D012486:Salmonella typhimurium / Q000187:drug effects; D013449:Sulfonamides / Q000494:pharmacology; D013552:Swine / Q000382:microbiology; D013754:Tetracyclines / Q000494:pharmacology
chemical_list: D000900:Anti-Bacterial Agents; D013449:Sulfonamides; D013754:Tetracyclines; D002701:Chloramphenicol