title: Antibiotic resistance and R factors in gram-negative bacteria isolated in a hospital for infectious diseases. 3. The effect of antibacterial treatment on the incidence of R factor-mediated antibiotic resistance.
mesh_terms: D000293:Adolescent; D000328:Adult; D000367:Age Factors; D000368:Aged; D000900:Anti-Bacterial Agents / Q000494:pharmacology*; D001419:Bacteria / Q000187:drug effects* / Q000302:isolation & purification; D002648:Child; D002675:Child, Preschool; D003470:Culture Media; D004352:Drug Resistance, Microbial; D004926:Escherichia coli / Q000187:drug effects / Q000302:isolation & purification; D005243:Feces / Q000382:microbiology; D006801:Humans; D007223:Infant; D008826:Microbial Sensitivity Tests; D008875:Middle Aged
chemical_list: D000900:Anti-Bacterial Agents; D003470:Culture Media