1. Department of Medicine, University of Santiago de Compostela, Santiago de Compostela, Spain
2. Spanish Biomedical Research Networking Centre, CIBERES, Santiago de Compostela, Spain
3. Department of Respiratory Medicine, University Hospital of Santiago de Compostela, Santiago de Compostela, Spain
4. Health Research Institute of Santiago de Compostela (IDIS), Santiago de Compostela, Spain
5. Department of Respiratory Medicine, Hospital of El Ferrol, El Ferrol, Spain
6. Faculty of Biology/CIBUS, Department of Biochemistry and Molecular Biology, University of Santiago de Compostela, Santiago de Compostela, Spain
7. Department of Developmental and Educational Psychology, University of Santiago de Compostela, Santiago de Compostela, Spain
8. Emergency Department, Hospital do Salnes, Vilagarcia de Arousa, Spain
9. Department of Medicine, University Autònoma of Barcelona, Barcelona, Spain
10. Department of Respiratory Medicine, Hospital Vall d’Hebron, Barcelona, Spain
11. Central Laboratory, University Hospital of Santiago de Compostela, Santiago de Compostela, Spain
12. Department of Radiology, University of Santiago de Compostela, Santiago de Compostela, Spain