title: Laryngeal competence after tracheal extubation.
mesh_terms: D003287:Contrast Media / Q000494:pharmacology; D006801:Humans; D001239:Inhalation; D007442:Intubation, Intratracheal; D007830:Larynx / Q000502:physiology*; D008875:Middle Aged; D013902:Radiography, Thoracic
chemical_list: D003287:Contrast Media