1. Cleveland Clinic; Cleveland Ohio USA
2. West China Hospital of Sichuan University; Chengdu Sichuan China
3. University of Texas MD Anderson Hospital; Houston Texas USA
4. University of Queensland, Princess Alexandra Hospital; Brisbane Australia
5. Memorial Sloan-Kettering Cancer Center; New York New York USA
6. Erasmus Medical Center; Rotterdam The Netherlands
7. Beijing Cancer Hospital; Beijing China
8. Guy's & St Thomas’ Hospitals; London England
9. Hôpital Nord; Marseille France
10. Indiana University Medical Center; Indianapolis Indiana USA
11. University of Pittsburgh Medical Center; Pittsburgh Pennsylvania USA
12. Department of Surgery; The University of Chicago; Chicago Illinois USA
13. Helsinki University Hospital; Helsinki Finland
14. University Medical Center Utrecht; Utrecht The Netherlands
15. Shanghai Chest Hospital; Shanghai China
16. Hospital de Clinicas, University of Buenos Aires; Buenos Aires Argentina
17. University of São Paulo School of Medicine; São Paulo Brazil
18. Royal Marsden NHS Foundation Trust, London, UK
19. Section of Thoracic Surgery, University of Alabama at Birmingham; Birmingham Alabama USA
20. Hospital Universitario del Mar; Barcelona Spain
21. University of Newcastle upon Tyne, Newcastle; United Kingdom
22. University of Cape Town, Groote Schuur Hospital; Cape Town South Africa
23. Fourth Hospital of Hebei Medical University; Shijiazhuang Hebei China
24. Mayo Clinic; Rochester Minnesota USA
25. University of Hong Kong Medical Center, Queen Mary Hospital; Hong Kong China
26. University of Rochester; Rochester New York USA
27. Toronto General Hospital; Toronto Ontario Canada
28. Fox Chase Cancer Center; Philadelphia Pennsylvania USA
29. University of Montreal; Montreal Quebec Canada
30. Medical University of South Carolina; Charleston South Carolina USA
31. Oregon Health & Science University; Portland Oregon USA
32. University Ziekenhuizen Leuven; Leuven Belgium
33. University of Michigan; Ann Arbor Michigan USA
34. University of Miami; Miami Florida USA
35. Case Western Reserve University; Cleveland Ohio USA