1. Department of Medical Psychology, Radboud University Medical Center, Nijmegen, The Netherlands;
2. Department of Medical Oncology, Radboud University Medical Center, Nijmegen, The Netherlands;
3. Netherlands Comprehensive Cancer Organisation (IKNL), Utrecht, The Netherlands;
4. Department of Haematology, Radboud University Medical Center, Nijmegen, The Netherlands;
5. University of Michigan School of Social Work, Ann Arbor, MI, USA;
6. Institute of Cancer Research and Royal Marsden NHS Foundation Trust, London, UK;
7. CoRPS-Centre of Research on Psychology in Somatic diseases, Department of Medical and Clinical Psychology, Tilburg University, Tilburg, The Netherlands;
8. Division of Psychosocial Oncology and Epidemiology, Netherlands Cancer Institute, Amsterdam, The Netherlands