1. Laboratory for Clinical Chemistry and Haematology, Jeroen Bosch Hospital , ’s-Hertogenbosch , The Netherlands
2. Department of Health Technology and Services Research , Technical Medical Centre, University of Twente , Enschede , The Netherlands
3. Department of Clinical Chemistry and Hematology , Zuyderland Medical Centre , Heerlen , The Netherlands
4. Department of Clinical Chemistry , Erasmus MC, University Medical Center , Rotterdam , The Netherlands
5. Department of Clinical Chemistry and Laboratory Medicine , Medisch Spectrum Twente , Enschede , The Netherlands
6. Laboratory for Clinical Chemistry and Haematology, University Medical Center Utrecht , Utrecht , The Netherlands
7. Department of Hospital Pharmacy , Erasmus MC, University Medical Center Rotterdam , Rotterdam , The Netherlands
8. Department of Clinical Chemistry and Laboratory Medicine , Haaglanden Medical Centre , The Hague , The Netherlands