title: Letter: Collection of tracheobronchial secretions.
mesh_terms: D001419:Bacteria / Q000302:isolation & purification; D001980:Bronchi / Q000378:metabolism* / Q000382:microbiology; D001999:Bronchoscopy; D005336:Fiber Optic Technology; D006801:Humans; D007442:Intubation, Intratracheal; D008171:Lung Diseases / Q000175:diagnosis; D008722:Methods; D013048:Specimen Handling; D014132:Trachea / Q000378:metabolism* / Q000382:microbiology