title: The sources of pneumonia in ITU patients.
mesh_terms: D000328:Adult; D000900:Anti-Bacterial Agents / Q000627:therapeutic use; D006801:Humans; D007362:Intensive Care Units; D008875:Middle Aged; D009055:Mouth / Q000382:microbiology; D009305:Nasopharynx / Q000382:microbiology; D010614:Pharynx / Q000382:microbiology; D011014:Pneumonia / Q000209:etiology*; D014132:Trachea / Q000382:microbiology
chemical_list: D000900:Anti-Bacterial Agents