title: Upper airway obstruction. Respiratory insufficiency in COPD.
mesh_terms: D000328:Adult; D000368:Aged; D000402:Airway Obstruction / Q000209:etiology*; D002283:Carcinoma, Bronchogenic / Q000150:complications*; D002294:Carcinoma, Squamous Cell / Q000150:complications*; D006801:Humans; D007822:Laryngeal Neoplasms / Q000150:complications*; D008173:Lung Diseases, Obstructive / Q000150:complications; D008175:Lung Neoplasms / Q000150:complications*; D008297:Male; D008875:Middle Aged; D012129:Respiratory Function Tests; D012891:Sleep Apnea Syndromes / Q000150:complications; D014135:Tracheal Stenosis / Q000150:complications