Aclidinium bromide improves symptoms and sleep quality in COPD: a pilot study
Helgo Magnussen, Michael Arzt, Stefan Andreas, Tanja Plate, Anna Ribera, Beatriz Seoane, Henrik Watz, Anne-Marie Kirsten
European Respiratory Journal 2017 49: 1700485; DOI: 10.1183/13993003.00485-2017