1. Department of Research and Development Netherlands Comprehensive Cancer Organization (IKNL) Utrecht The Netherlands
2. Division of Psychosocial Research and Epidemiology Netherlands Cancer Institute Amsterdam The Netherlands
3. Department of Medical and Clinical Psychology Center of Research on Psychological and Somatic Disorders (CoRPS), Tilburg University Tilburg The Netherlands
4. Department of Internal Medicine, Reinier de Graaf Group Delft The Netherlands
5. Department of Internal Medicine Jeroen Bosch Hospital s‐Hertogenbosch The Netherlands
6. Department of Internal Medicine VieCuri Medical Centre Venlo and Venray The Netherlands
7. Department of Hemato‐Oncology Catharina Cancer Institute, Catharina Hospital Eindhoven The Netherlands
8. Department of Haematology Radboud University Medical Center Nijmegen The Netherlands
9. Department of Internal Medicine Máxima Medical Centre Eindhoven The Netherlands