. 2019 Dec 5;14:2815–2823. doi: 10.2147/COPD.S228465
© 2019 Paneroni et al.
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Figure 1.
Daily steps. ANOVA test p<0.001. Difference between groups: *LTOT vs HYPOX: p<0.001; °LTOT vs COPD: p<0.001.