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Early bronchodilator action of glycopyrronium versus tiotropium in moderate-to-severe COPD patients: a cross-over blinded randomized study (Symptoms and Pulmonary function in the moRnING).
Marin JM, Beeh KM, Clemens A, Castellani W, Schaper L, Saralaya D, Gunstone A, Casamor R, Kostikas K, Aalamian-Mattheis M. Marin JM, et al. Among authors: gunstone a. Int J Chron Obstruct Pulmon Dis. 2016 Jun 28;11:1425-34. doi: 10.2147/COPD.S106127. eCollection 2016. Int J Chron Obstruct Pulmon Dis. 2016. PMID: 27418815 Free PMC article. Clinical Trial.