1. Department of Oncology Rigshospitalet Copenhagen Denmark
2. EORTC Headquarters Brussels Belgium
3. Department of Psychosocial Research and Epidemiology The Netherlands Cancer Institute Amsterdam The Netherlands
4. Department of Haematology Rigshospitalet Copenhagen Denmark
5. Department of Radiation Oncology The Netherlands Cancer Institute Amsterdam The Netherlands
6. Department of Radiation Oncology, Iridium Network University of Antwerp Antwerpen Belgium
7. Department of Radiation Oncology Leiden University Medical Centre Leiden The Netherlands
8. Department of Radiation Oncology Erasmus MC Cancer Institute Rotterdam The Netherlands