1. Univ. Barcelona, Hospital Clinic, IDIBAPS and CIBERES, Spain;
2. Brigham and Women’s Hospital, Harvard Medical School, Boston, Massachusetts, USA;
3. Lewis Katz School of Medicine at Temple University, Philadelphia, Pennsylvania, USA;
4. University of Exeter Medical School College of Medicine and Health, University of Exeter, Exeter, Devon, UK;
5. South Texas Veterans Health Care System, University of Texas Health, San Antonio, Texas, USA;
6. National Heart & Lung Institute, Imperial College London, United Kingdom;
7. McGill University Health Centre, McGill University, Montreal, Canada;
8. University of Michigan, Ann Arbor, Michigan, USA;
9. Weill Cornell Medical Center/ New York-Presbyterian Hospital, New York, New York, USA;
10. Hospital Universitario de Caracas Universidad Central de Venezuela Centro Médico de Caracas, Caracas, Venezuela;
11. Liverpool University Hospitals NHS Foundation Trust, UK / National Heart and Lung Institute, Imperial College, London, UK / School of Clinical Medicine, College of Health Sciences, University of Kwazulu-Natal, South Africa;
12. University of Ferrara, Ferrara, Italy;
13. Respiratory Medicine Unit and Oxford Respiratory NIHR Biomedical Research Centre, Nuffield Department of Medicine, University of Oxford, UK;
14. Pneumologie, Hôpital Cochin AP-HP.Centre, Université Paris, France;
15. Pulmocare Research and Education (PURE) Foundation, Pune, India;
16. St. Paul’s Hospital University of British Columbia, Vancouver, Canada;
17. University of Manchester, Manchester, UK;
18. University Hospital, Birmingham, UK;
19. Universidad de la República Hospital Maciel Montevideo, Uruguay; and
20. Department of Medicine, Pulmonary and Critical Care Medicine, University Medical Center Giessen and Marburg, Philipps-University, German Center for Lung Research (DZL), Marburg, Germany