1. Division of Pharmacology, The Netherlands Cancer Institute, Amsterdam, the Netherlands
2. Department of Pharmacy & Pharmacology, The Netherlands Cancer Institute, Amsterdam, the Netherlands
3. Biometrics Department, The Netherlands Cancer Institute, Amsterdam, the Netherlands
4. Department of Clinical Chemistry and Laboratory Medicine, Leiden University Medical Center, Leiden, the Netherlands
5. Department of Medical Oncology, Leiden University Medical Center, Leiden, the Netherlands
6. Department of Medical Oncology, Erasmus MC Cancer Institute, Erasmus University Medical Center, Rotterdam, the Netherlands
7. Department of Clinical Pharmacology, Division of Medical Oncology, The Netherlands Cancer Institute, Amsterdam, the Netherlands
8. Late Development Oncology, AstraZeneca, Cambridge, UK
9. Department of Internal Medicine, Wilhelmina Hospital Assen, Assen, the Netherlands
10. Department of Internal Medicine, Bravis Hospital, Roosendaal, the Netherlands
11. Department of Medical Oncology, Catharina Hospital, Eindhoven, the Netherlands
12. Department of Internal Medicine, Canisius-Wilhelmina Hospital, Nijmegen, the Netherlands
13. Department of Internal Medicine, Deventer Hospital, Deventer, the Netherlands
14. Department of Medical Oncology, Haga Hospital, The Hague, the Netherlands
15. Department of Internal Medicine, Maastricht University Medical Center, Maastricht, the Netherlands
16. Department of Medical Oncology, Reinier de Graaf Gasthuis, Delft, the Netherlands
17. Department of Internal Medicine, Laurentius Hospital, Roermond, the Netherlands
18. Department of Internal Medicine, Hospital Gelderse Vallei, Ede, the Netherlands
19. Department of Clinical Pharmacy and Toxicology, Leiden University Medical Center, Leiden, the Netherlands
20. Department of Pharmaceutical Sciences, Utrecht University, Utrecht, the Netherlands
21. Division of Pharmacoepidemiology and Clinical Pharmacology, Department of Pharmaceutical Sciences, Utrecht University, Utrecht, the Netherlands
22. Department of Gastrointestinal Oncology, Division of Medical Oncology, The Netherlands Cancer Institute, Amsterdam, the Netherlands