Cite
MLA Citation
C Vogelmeier et al.. “S35 Efficacy and safety of the direct switch from various previous treatments to glycopyrronium or indacaterol/glycopyrronium in patients with moderate copd: the crystal study.” Thorax, vol. 71, n.d., p. A22. http://access.bl.uk/ark:/81055/vdc_100144717267.0x000031