1. Department of Thoracic Surgery, St. James’s University Hospital , Leeds, UK
2. Department of Thoracic Surgery, University Hospital Leuven , Leuven, Belgium
3. Department of Thoracic Surgery, University Hospital of Lausanne , Lausanne, Switzerland
4. Department of Thoracic Surgery, IMM—Curie-Montsouris Thoracic Institute , Paris, France
5. Department of Cardiothoracic Surgery, Copenhagen University Hospital, Rigshospitalet , Copenhagen, Denmark
6. Department of Visceral, Transplant and Thoracic Surgery, Center of Operative Medicine, Medical University of Innsbruck , Innsbruck, Austria
7. Department of Thoracic Surgery. Tenon Hospital, Sorbonne University—Assistance Publique Hôpitaux de Paris , Paris, France
8. Department of Cardio-Thoracic Surgery, University Hospital of Rouen , Rouen, France
9. Department of Thoracic Surgery, Faculty of Medicine, Biruni University , Istanbul, Turkey
10. Department of Thoracic Surgery, Nouvel Hopital Civil , Strasbourg, France
11. Department of Thoracic Surgery, Clinical University Hospital of Valencia , Valencia, Spain
12. Department of Surgery, University of Szeged , Szeged, Hungary
13. Department of Thoracic Surgery, Salamanca University Hospital , Salamanca, Spain
14. Department of Thoracic Surgery, Hospital Universitario Puerta de Hierro Majadahonda , Madrid, Spain
15. Department of Thoracic Surgery, Florence Nightingale Hospital , Duesseldorf, Germany
16. Department of General Thoracic Surgery, Fondazione Policlinico Universitario A. Gemelli—IRCCS, Catholic University of Sacred Hearth , Rome, Italy
17. Department of Thoracic Surgery, University Hospital Zurich , Zurich, Switzerland
18. Thoracic Surgery Department, Dijon University Hospital , Dijon, France
19. Thoracic Surgery Department, Poznan University of Medical Sciences , Poznan, Poland
20. Division of Thoracic Surgery, University of Torino , Turin, Italy
21. Department of Thoracic Surgery, Ljubljana University Medical Centre , Ljubljana, Slovenia
22. Department of Thoracic Surgery, Medical School, University of Pécs , Pécs, Hungary
23. Department of Thoracic Surgery, North Hospital, APHM/Aix-Marseille University , Marseille, France
24. Department of Cardiovascular and Thoracic Surgery, West Virginia University , Morgantown, WV, USA
25. Thoracic Surgery and Lung Transplantation Unit, IRCCS Foundation Ca' Granda Ospedale Maggiore Policlinico , Milan, Italy
26. Department of Thoracic Surgery, IRCCS San Raffaele Scientific Institute, and Vita-Salute San Raffaele University , Milan, Italy