Long-term oxygen therapy for patients with chronic obstructive pulmonary disease (COPD): an evidence-based analysis.
D003362:Cost-Benefit Analysis; D019317:Evidence-Based Medicine; D006801:Humans; D010102:Oxygen Inhalation Therapy / Q000191:economics / Q000379:methods*; D029424:Pulmonary Disease, Chronic Obstructive / Q000628:therapy*; D013673:Technology Assessment, Biomedical