title: Timely topics in microbiology, 1972: antibiotics and nonenteric gram negatives.
mesh_terms: D000900:Anti-Bacterial Agents / Q000494:pharmacology / Q000627:therapeutic use*; D001419:Bacteria / Q000187:drug effects*; D001634:Bibliographies as Topic; D008826:Microbial Sensitivity Tests
chemical_list: D000900:Anti-Bacterial Agents