title: Hypercapnia during oxygen therapy in airways obstruction: a reappraisal.
mesh_terms: D000138:Acidosis / Q000209:etiology; D000208:Acute Disease; D000402:Airway Obstruction / Q000628:therapy*; D006801:Humans; D006935:Hypercapnia / Q000209:etiology*; D010102:Oxygen Inhalation Therapy / Q000009:adverse effects*