title: Meaning and limits of bacteriological investigation of tracheo-bronchial secretion. Comparison of samples collected by different methods.
mesh_terms: D001419:Bacteria / Q000302:isolation & purification*; D001980:Bronchi / Q000382:microbiology*; D006801:Humans; D013048:Specimen Handling / Q000379:methods*; D007507:Therapeutic Irrigation; D014132:Trachea / Q000382:microbiology*