Oxygen therapy in chronic obstructive pulmonary disease.

Abstract

Since the introduction of oxygen as a therapeutic agent 70 years ago, much has been learned regarding the detrimental effects of hypoxemia and the beneficial impact of oxygen therapy. It is projected that there are close to 800,000 patients receiving long-term oxygen therapy (LTOT) in the United States, at a cost of approximately $1.8 billion annually. The… (More)
DOI: 10.1513/pats.200708-124ET

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