1. Department of Public Health Erasmus MC University Medical Center Rotterdam Rotterdam The Netherlands
2. Department of Internal Medicine Onze Lieve Vrouwe Gasthuis Amsterdam The Netherlands
3. Center of Expertise Palliative Care Leiden University Medical Center Leiden The Netherlands
4. Department of Medical Oncology Maasstad Hospital Rotterdam The Netherlands
5. Department of Pulmonary Diseases Northwest Clinics Den Helder The Netherlands
6. Department of Medical Oncology Cancer Center Amsterdam VU University Medical Center Amsterdam The Netherlands
7. Department of Internal Medicine Rijnstate Hospital Arnhem The Netherlands
8. Department of Medical Oncology Erasmus MC Cancer Institute Rotterdam The Netherlands