Dreher - Figure 42

Noninvasive ventilation during walking in patients with severe COPD: A Randomised Cross-over Trial

References

[22]

Dreher M, Storre JH, Windisch W. Noninvasive ventilation during walking in patients with severe COPD: a randomised cross-over trial. Eur Respir J. 2007;29:930–936.