1. The Netherlands Comprehensive Cancer Organisation Utrecht The Netherlands
2. Center of Research on Psychology in Somatic Diseases (CoRPS) Tilburg University Tilburg The Netherlands
3. Netherlands Association for Palliative Care (PZNL) Utrecht The Netherlands
4. Department of Respiratory Diseases Elisabeth Tweesteden Hospital Tilburg The Netherlands
5. Department of Medical Oncology and Department of Anesthesiology, Pain and Palliative Care Radboud University Medical Center Nijmegen The Netherlands
6. Department of Medical Oncology Jeroen Bosch Hospital's Hertogenbosch Hertogenbosch The Netherlands
7. Department of Head and Neck Oncology and Surgery Antoni van Leeuwenhoek/Netherlands Cancer Institute Amsterdam The Netherlands
8. Department of Supportive Care Princess Margaret Cancer Centre Toronto Ontario Canada
9. Division of Psychosocial Research and Epidemiology The Netherlands Cancer Institute Amsterdam The Netherlands