Affiliation: | 1. Department of Respiratory Medicine, Ghent University Hospital, De Pintelaan 185, B9000 Ghent, Belgium;2. Pulmonary Research Institute, Hospital Grosshansdorf, Woehrendamm 80, D-22927 Grosshansdorf, Germany;3. Almirall, Sant Feliu de Llobregat, 08980, Barcelona, Spain |