1. Cancer Research UK Cambridge Institute University of CambridgeLi Ka Shing Centre UK
2. Organisation of European Cancer Institutes Brussels Belgium
3. Cancer Research UK Cambridge Centre University of Cambridge UK
4. the Netherlands Comprehensive Cancer Organisation (IKNL) Utrecht The Netherlands
5. Rijnstate Hospital Arnhem The Netherlands
6. Institut Jules Bordet Université Libre de Bruxelles Brussels Belgium
7. National Institute of Oncology Budapest Hungary
8. Division of Cancer Medicine Oslo University Hospital Oslo Norway
9. Theme Cancer Karolinska University Hospital Stockholm Sweden
10. Alliance Against Cancer Rome Italy
11. Institut Curie Paris Cedex 05 France
12. Radiotherapeutisch Instituut Friesland Leeuwarden The Netherlands
13. Institut Gustave Roussy Villejuif France
14. American Hospital of Paris Neuilly‐sur‐Seine France
15. Masaryk Memorial Cancer Institute Brno Czech Republic
16. Centre Léon Bérard Lyon France
17. Ospedale Policlinico San Martino Genova Italy
18. Cancer Intelligence Bristol UK
19. The Netherlands Cancer Institute Amsterdam The Netherlands
20. Department of Health Technology and Services Research University of Twente Enschede The Netherlands