1. Centre for Psycho-Oncology; Helen Dowling Institute; Utrecht The Netherlands
2. Department of Surgery; Medical Centre Alkmaar; Alkmaar The Netherlands
3. Department of Epidemiology and Biostatistics; VU University Medical Centre; Amsterdam The Netherlands
4. Department of Surgical Oncology; VU University Medical Centre; Amsterdam The Netherlands
5. Department of Cell Biology and Immunology; VU University Medical Centre; Amsterdam The Netherlands