International Journal of Clinical Practice · 2011 · 23 citations · 14 references
We found that, regarding survival, any kind of LTOT proved to be beneficial over no LTOT only in the first 2 years of follow-up, and that there was not any difference between intermittent and true LTOT utilisation.
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Factors affecting survival of hospitalised patients with COPD
Hakan Günen, Filiz Koşar, Levent Cem Mutlu et al. · European Respiratory Journal · 2005 · 283 citations · Full text