1. Department of Thoracic Surgery, Respiratory Institute, Hospital Clínic de Barcelona , Barcelona, Spain
2. Department of Rehabilitation and Physiotherapy, Hospital Clínic de Barcelona , Barcelona, Spain
3. Pneumology Department, Respiratory Institute, Hospital Clínic de Barcelona , Barcelona, Spain
4. Inflammation and repair in respiratory diseases, Biomedic Research Institute of August Pi I Sunyer—IDIBAPS, Barcelona, Spain