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Walk the Even Hospital Database by book and chapter — the raw source passages that ground Ask, DDx, and the rest.

1 passage

contentuptodate· Content· item f18_33_18973

©2013 UpToDate ® Print Email Survival benefit of long-term oxygen therapy in COPD Medical Research Council Trial in which 87 patients with chronic obstructive pulmonary disease, severe hypoxemia, hypercapnia, and a history of heart failure were randomized to treatment with oxygen therapy for at least 15 h/day (blue dashed line) or no oxygen (red line). Continuous oxygen therapy led to a significant survival benefit. Report of the Medical Research Council Working Party, Lancet 1981; 1:681.