1. Beth Israel Deaconess Medical Center, Boston, MA;
2. Asan Medical Center and University of Ulsan College of Medicine, Seoul, Korea, Republic of (South);
3. Wojskowy Instytut Medyczny, Warsaw, Poland;
4. Aarhus University Hospital, Aarhus, Denmark;
5. Edinburgh Cancer Centre, Western General Hospital, Edinburgh, United Kingdom;
6. P. A. Herzen Moscow Oncology Research Institute, Ministry of Health of the Russian Federation, Moscow, Russian Federation;
7. Institute of Cancer Research, London, United Kingdom;
8. N.N. Blokhin Russian Cancer Research Center, Moscow, Russian Federation;
9. Russian Scientific Center of Roentgenoradiology, Moscow, Russian Federation;
10. Clinical Hospital No. 1 of the Poznan University of Medical Sciences, Poznań, Poland;
11. University of Washington Fred Hutchinson Cancer Center, Seattle, WA;
12. Herlev Hospital, University of Copenhagen, Herlev, Denmark;
13. Maria Skłodowska-Curie Memorial Cancer Center, Warsaw, Poland;
14. Yonsei University College of Medicine, Seoul, Korea, Republic of (South);
15. Université Laval, Quebec, QC, Canada;
16. Hospital Universitario Ramón y Cajal, Madrid, Spain;
17. MSD China, Beijing, China;
18. Merck & Co., Inc., Kenilworth, NJ;
19. Georgetown Lombardi Comprehensive Cancer Center, Washington, DC;