The Effects of Extrafine Beclometasone/Formoterol (BDP/F) on Lung Function, Dyspnea, Hyperinflation, and Airway Geometry in COPD Patients: Novel Insight Using Functional Respiratory Imaging

Journal of Aerosol Medicine and Pulmonary Drug Delivery - United States
doi 10.1089/jamp.2013.1064