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Six weeks of treatment with high-flow nasal cannula oxygen therapy improved health-related quality of life and reduced hypercapnia in patients with stable hypercapnic chronic obstructive pulmonary disease. Clinical trial registered with www.clinicaltrials.gov (NCT02545855) and www.umin/ac.jp (UMIN000017639).
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Nagata et al. (2017) studied this question.
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