1. Scientific Bureau Dutch Institute for Clinical Auditing Leiden The Netherlands
2. Department of Medical Oncology University Medical Center Utrecht Utrecht The Netherlands
3. Department of Medical Oncology, Amsterdam UMC VU University Medical Center, Cancer Center Amsterdam Amsterdam The Netherlands
4. Department of Pharmacy Rode Kruis Ziekenhuis Beverwijk The Netherlands
5. Department of Biomedical Data Sciences Leiden University Medical Center Leiden The Netherlands
6. Department of Surgical Oncology Netherlands Cancer Institute Amsterdam The Netherlands
7. Department of Medical Oncology and Immunology Netherlands Cancer Institute Amsterdam The Netherlands
8. Division of Molecular Oncology and Immunology Netherlands Cancer Institute Amsterdam The Netherlands
9. Department of Medical Oncology GROW School of Developmental Biology, Maastricht University Medical Center Maastricht The Netherlands
10. Department of Medical Oncology Zuyderland Medical Center Sittard Sittard‐Geleen The Netherlands
11. Department of Medical Oncology Isala Oncology Center Isala The Netherlands
12. Department of Medical Oncology, University Medical Center Groningen University of Groningen Groningen The Netherlands
13. Division of Pharmacoepidemiology and Clinical Pharmacology Utrecht Institute for Pharmaceutical Sciences Utrecht The Netherlands
14. Department of Medical Oncology Leiden University Medical Center Leiden The Netherlands
15. Department of Internal Medicine Medisch Spectrum Twente Enschede The Netherlands
16. Department of Internal Medicine Medical Center Leeuwarden Leeuwarden The Netherlands
17. Department of Internal Medicine Amphia Hospital Breda The Netherlands
18. Department of Medical Oncology and Radiology & Nuclear Medicine Erasmus Medical Center Rotterdam The Netherlands
19. Department of Internal Medicine Maxima Medical Center Eindhoven The Netherlands
20. Department of Medical Oncology Radboud University Medical Center Nijmegen The Netherlands
21. Department of Pathology University Medical Center Utrecht Utrecht The Netherlands