1. 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. (15th November 2016) Authors: Vogelmeier, C; Aalamian-Mattheis, M; Greulich, T; Marin, J M; Castellani, W; Similowski, T; Ninane, V; Gaga, M; Lane, S; Nunez, X; Patalano, F; Clemens, A; Kostikas, K Journal: Thorax Issue: Volume 71(2016)Supplement 3 Page Start: A22 Record Type: Journal Article View Content: Available online (eLD content is only available in our Reading Rooms) ↗