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Article Source: Long-Term Oxygen Therapy 24 vs 15 h/day and Mortality in Chronic Obstructive Pulmonary Disease
Ahmadi Z, Sundh J, Bornefalk-Hermansson A, Ekström M (2016) Long-Term Oxygen Therapy 24 vs 15 h/day and Mortality in Chronic Obstructive Pulmonary Disease. PLOS ONE 11(9): e0163293. https://doi.org/10.1371/journal.pone.0163293

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