title: Transtracheal injection of saline in the investigation of pneumonia.
mesh_terms: D000328:Adult; D006801:Humans; D007267:Injections; D011018:Pneumonia, Pneumococcal / Q000175:diagnosis*; D012965:Sodium Chloride / Q000008:administration & dosage*; D013048:Specimen Handling; D013183:Sputum; D014132:Trachea
chemical_list: D012965:Sodium Chloride