ALVAN L. BARACH, M.D.
To the editor: In reference to the correspondence on altitude and O2 therapy in chronic lung disease in the ANNALS (73:659, 1970), since 1938 I have observed prolongation of life as a result of residence in oxygen chambers (1). A patient who had a chamber in her town house, as well as one in the country, lived comfortably, without shortness of breath, for more than 2 years at a concentration of 50% to 60% oxygen. One day when she was taken out on her customary excursion to the end of the flower garden nursery, the portable oxygen cylinder became empty,
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BARACH AL. Altitude and O2 Therapy. Ann Intern Med. 1971;74:449. doi: 10.7326/0003-4819-74-3-449_1
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Published: Ann Intern Med. 1971;74(3):449.
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Print ISSN: 0003-4819 | Online ISSN: 1539-3704
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