1 University of Manchester, Medicines Evaluation Unit, Manchester University NHS Foundation Hospital Trust, Manchester, UK.
2 National Heart and Lung Institute, University of London Imperial College, London, UK.
3 Lung Investigation Unit, University Hospital Birmingham, Birmingham, UK.
4 Dept of Pulmonology, Universidad de la Republica Montevideo, Montevideo, Uruguay.
5 Dept of Medicine, Pulmonary and Critical Care Medicine, University Medical Center Giessen and Marburg, Philipps-University Marburg, Member of the German Center for Lung Research (DZL), Marburg, Germany.
6 Hospital Clínic, Universitat de Barcelona, Ciberes, Barcelona, Spain.