title: The effects of general anaesthesia on the surface tension of secretions in the upper airway in patients with and without pulmonary disease.
mesh_terms: D000328:Adult; D000368:Aged; D000768:Anesthesia, General; D001980:Bronchi / Q000378:metabolism*; D006221:Halothane; D006801:Humans; D008171:Lung Diseases / Q000503:physiopathology*; D008875:Middle Aged; D009294:Narcotics; D009609:Nitrous Oxide; D011229:Preanesthetic Medication; D013500:Surface Tension; D014132:Trachea / Q000378:metabolism*
chemical_list: D009294:Narcotics; D009609:Nitrous Oxide; D006221:Halothane