1. Department of Radiation Oncology Léon Bérard Cancer Center Lyon France
2. Department for Radiation Oncology University Hospital Zurich University of Zurich Switzerland
3. Department of Radiation Oncology Leuven Cancer Institute University Hospital Gasthuisberg Leuven Belgium
4. Department of Radiotherapy University Medical Center Utrecht The Netherlands
5. Centre Hospitalier de l'Université de Montréal Canada
6. Department of Radiation Oncology Medical UniversityGeneral Hospital of Vienna Austria
7. Department of Radiation Oncology Amsterdam University Medical Centers The Netherlands
8. Department of Oncology Aarhus University Hospital Denmark
9. Section for Biomedical Physics Department of Radiation Oncology University of Tübingen Germany
10. Department of Biomedical Engineering and Physics Cancer Center Amsterdam Amsterdam UMC University of Amsterdam The Netherlands
11. Institute of Cancer Sciences University of Manchester UK
12. Department of Radiotherapy Related Research The Christie NHS Foundation Trust Manchester UK
13. Department of Radiation Oncology University of Tübingen Germany