title: Indications for oxygen therapy in chronic obstructive pulmonary disease.
mesh_terms: D000142:Acidosis, Respiratory / Q000209:etiology; D002245:Carbon Dioxide / Q000097:blood; D002908:Chronic Disease; D004305:Dose-Response Relationship, Drug; D006801:Humans; D000860:Hypoxia / Q000175:diagnosis; D008173:Lung Diseases, Obstructive / Q000097:blood / Q000145:classification / Q000628:therapy*; D010100:Oxygen / Q000008:administration & dosage / Q000097:blood / Q000494:pharmacology; D010102:Oxygen Inhalation Therapy / Q000009:adverse effects; D010313:Partial Pressure; D011652:Pulmonary Circulation
chemical_list: D002245:Carbon Dioxide; D010100:Oxygen