1. Department of OncologyHelsinki University Central HospitalHelsinki Finland
2. Department of Oncology, Skåne University HospitalLund UniversityLund Sweden
3. Department of Oncology, The Norwegian Radium HospitalOslo University HospitalOslo Norway
4. Section of Medical Oncology, Medical Center 2Christian‐Albrechts‐UniversityKiel Germany
5. Sarkomzentrum Berlin‐BrandenburgHELIOS Klinikum Berlin‐BuchBerlin Germany
6. Schwerpunktpraxis für Onkologie Hämatologie und ambulante TumortherapieDüsseldorf Germany
7. Department of Gastroenterology/EndocrinologyUniversity of GöttingenGöttingen
8. Division of Surgical Oncology and Thoracic SurgeryMannheim University Medical CenterMannheim Germany
9. III Medizinischen KlinikKlinikum rechts der IsarMunich Germany
10. Klinik für Onkologie und Hämatologie amKrankenhaus Nordwest, Frankfurt Germany
11. Department of Internal Medicine IIIUniversity Hospital‐Großhadern, Ludwig Maximilians UniversityMunich Germany
12. Sarcoma Center, West German Cancer CenterUniversity of Duisburg‐EssenEssen Germany
13. Gerhard Domagk Institute of PathologyUniversity Hospital MuensterMuenster Germany
14. Department of PathologyHelsinki University Central HospitalHelsinki Finland
15. Department of SurgerySahlgrenska University HospitalGothenburg Sweden
16. Laboratory of Molecular OncologyBiomedicum, University of HelsinkiHelsinki Finland
17. Mayo ClinicRochester Minnesota
18. 4Pharma LtdTurku Finland
19. Memorial Sloan Kettering Cancer Center, New YorkNew York