title: Outpatient oxygen for chronic airway obstruction.
mesh_terms: D000402:Airway Obstruction / Q000534:rehabilitation / Q000628:therapy*; D000553:Ambulatory Care; D002245:Carbon Dioxide / Q000378:metabolism; D006328:Cardiac Catheterization; D002908:Chronic Disease; D003365:Costs and Cost Analysis; D005500:Follow-Up Studies; D006333:Heart Failure / Q000628:therapy; D006976:Hypertension, Pulmonary / Q000628:therapy; D000860:Hypoxia / Q000628:therapy; D010102:Oxygen Inhalation Therapy; D005082:Physical Exertion; D011660:Pulmonary Heart Disease / Q000628:therapy; D013997:Time Factors
chemical_list: D002245:Carbon Dioxide