1. Institute of Mental Health, Bouman GGZ Rotterdam, The Netherlands
2. Department of Internal Medicine, Reinier de Graaf Hospital, Delft, The Netherlands
3. Department of Clinical Oncology, Leiden University Medical Center, Leiden, The Netherlands
4. Comprehensive Cancer Centre The Netherlands, Utrecht, The Netherlands
5. Department of Medical Statistics and Department of Clinical Epidemiology, Leiden University Medical Center, Leiden, The Netherlands
6. Department of Internal Medicine, Groene Hart Hospital, Gouda, The Netherlands
7. Department of Internal Medicine, Haga Hospital, The Hague, The Netherlands
8. Department of Psychiatry, Leiden University Medical Center, Leiden, The Netherlands