1. Department of Medical Oncology Erasmus Medical Center Cancer Institute Rotterdam The Netherlands
2. Department of Clinical Chemistry Erasmus Medical Center Rotterdam The Netherlands
3. Division of Pharmacology The Netherlands Cancer Institute Amsterdam The Netherlands
4. Department of Medical Oncology Leiden University Medical Center Leiden The Netherlands
5. Division of Medical Oncology Department of Clinical Pharmacology The Netherlands Cancer Institute Amsterdam The Netherlands
6. Department of Clinical Chemistry and Laboratory Medicine Leiden University Medical Center Leiden The Netherlands
7. Laboratory Genetic Metabolic Diseases Department of Clinical Chemistry Amsterdam UMC Cancer Center Amsterdam Amsterdam Gastroenterology Endocrinology Metabolism University of Amsterdam Amsterdam The Netherlands
8. Department of Pharmacy Isala Hospital Zwolle The Netherlands
9. Isala Diaconessen Hospital Meppel The Netherlands
10. Department of Clinical Pharmacy and Toxicology Treant HealthgroupScheper Hospital Emmen The Netherlands
11. Department of Pharmacy & Pharmacology The Netherlands Cancer Institute Amsterdam The Netherlands
12. Division of Pharmacoepidemiology and Clinical Pharmacology Department of Pharmaceutical Sciences Faculty of Science Utrecht University Utrecht The Netherlands
13. Cambridge Isotope Laboratories Tewksbury Massachusetts USA
14. Department of Internal Medicine Deventer Hospital Deventer The Netherlands
15. Division of Medical Oncology Department of Gastrointestinal Oncology The Netherlands Cancer Institute Amsterdam The Netherlands
16. Department of Clinical Pharmacy and Toxicology Leiden University Medical Center Leiden The Netherlands
17. Leiden Network for Personalised Therapeutics (LNPT) Leiden The Netherlands
18. Late Development Oncology AstraZeneca Cambridge UK