1. Dana-Farber Cancer Institute; Department of Psychosocial Oncology and Palliative Care; 450 Brookline Ave Boston MA USA 02215
2. Radboud University Medical Center; Medical Oncology; Nijmegen Netherlands
3. Radboud University Medical Center; Expert Center for Chronic Fatigue; PO Box 9101 Nijmegen Netherlands 6500 HB
4. Academic Medical Center, University of Amsterdam; Department of Medical Psychology; Amsterdam Netherlands
5. University Medical Center Groningen, University of Groningen; Department of Health Psychology; Groningen Netherlands
6. H. Lee Moffitt Cancer Center and Research Institute, Inc.; Division of Population Science; Tampa Florida USA
7. Amsterdam UMC, University of Amsterdam; Department of Medical Psychology; Meibergdreef 9 Amsterdam Netherlands 1105 AZ