1. Istituto Nazionale Tumori Fondazione Pascale, Naples, Italy;
2. NN Blokhin Russian Cancer Research Center, Moscow, Russian Federation;
3. Eberhard Karls University, Tübingen, Germany;
4. The Christie NHS Foundation Trust, Manchester, United Kingdom;
5. University of Athens, Athens, Greece;
6. Medical University of Vienna, Vienna, Austria;
7. Netherlands Cancer Institute, Amsterdam, Netherlands;
8. Hospital Universitario La Paz, Universidad Autónoma de Madrid, Madrid, Spain;
9. Oslo University Hospital, Oslo, Norway;
10. Vall d'Hebron University, Barcelona, Spain;
11. CHU Sart Tilman Liège, Liege, Belgium;
12. Sklodowska-Curie Memorial Cancer Center, Warsaw, Poland;
13. University Hospital Zurich, Zurich, Switzerland;
14. Lund University Hospital and Lund University, Lund, Sweden;
15. University Medical Center Groningen, Groningen, Netherlands;
16. Bristol-Myers Squibb, Princeton, NJ;
17. University Hospital Essen, Essen, Germany;
18. Mount Vernon Cancer Centre, Northwood, Middlesex, United Kingdom;