Institution: | a Division of Clinical Science, St George’s University of London, London, UK b Respiratory Medicine, Ghent University Hospital, Belgium c Lung Department, Orlandi General Hospital, Bussolengo, Italy d Health Services Research Unit, IMIM - Hospital del Mar Research Institute, Barcelona, Spain e Respiratory Medicine, Maingau Hospital, Frankfurt am Main, Germany f Division of Community Health Sciences, University of Edinburgh, UK g Pulmonology Department, Lille University Hospital, France h Pneumology Unit, Requena General Hospital, Valencia, Spain i University Medical Centre Groningen, The Netherlands j Respiratory Centre of excellence, GlaxoSmithKline, Marly le Roi, France k Biostatistics and Epidemiology, GlaxoSmithKline, Munich, Germany |