1. Department of Respiratory Medicine; Biomedical Research Institute Sant Pau (IIb Sant Pau); Barcelona Spain
2. Department of Medicine; Universidad Autónoma de Barcelona; Barcelona Spain
3. Department of Pathology; Hospital de la Santa Creu i Sant Pau; Barcelona Spain
4. Department of Histopathology; Royal Brompton & Harefield NHS Trust; London UK
5. Department of Anaesthesiology; Hospital de la Santa Creu i Sant Pau; Barcelona Spain
6. Department of Radiology; Hospital de la Santa Creu i Sant Pau; Barcelona Spain
7. Department of Internal Medicine 2; University of Tübingen; Tübingen Germany