| Institution: | 1. Hospital Clínic de Barcelona, Thorax Clinic Institute, Respiratory Diagnostic Centre, Barcelona, Catalonia, Spain;2. August Pi i Sunyer Biomedical Research Institute (IDIBAPS), University of Barcelona, Barcelona, Catalonia, Spain;3. Center for Biomedical Network Research in Respiratory Diseases (CIBERES), Barcelona, Catalonia, Spain;4. Parc de Salut Mar, Pulmonary Medicine Department, Hospital del Mar Medical Research Institute (IMIM), Pompeu Fabra University, Barcelona, Catalonia, Spain;5. Epidemiology Department, Centre for Research in Environmental Epidemiology (CREAL), Barcelona, Catalonia, Spain;6. Center for Biomedical Network Research in Epidemiology and Public Health (CIBERESP), Barcelona, Catalonia, Spain;7. Blanquerna Health Sciences Faculty, Ramon Llull University, Barcelona, Catalonia, Spain;8. Respiratory Department, Cardiovascular Foundation from Colombia Floridablanca, Santander, Colombia |
