title: Impact of tiotropium on exacerbations versus glycopyrronium and QVA149.
authors.affiliation: a Boehringer Ingelheim Pharma GmbH & Co. KG , Ingelheim , Germany.
authors.forename: Norbert
authors.initials: N
authors.lastname: Metzdorf
authors.affiliation: a Boehringer Ingelheim Pharma GmbH & Co. KG , Ingelheim , Germany.
authors.forename: Christoph
authors.initials: C
authors.lastname: Hallmann
authors.affiliation: a Boehringer Ingelheim Pharma GmbH & Co. KG , Ingelheim , Germany.
authors.forename: Bernd
authors.initials: B
authors.lastname: Disse
mesh_terms: D001993:Bronchodilator Agents / Q000627:therapeutic use*; D006024:Glycopyrrolate / Q000627:therapeutic use*; D006801:Humans; D008168:Lung / Q000187:drug effects*; D018727:Muscarinic Antagonists / Q000627:therapeutic use*; D029424:Pulmonary Disease, Chronic Obstructive / Q000188:drug therapy*
chemical_list: D001993:Bronchodilator Agents; D018727:Muscarinic Antagonists; D006024:Glycopyrrolate