1. Department of Clinical Chemistry and Haematology, Jeroen Bosch Hospital, ‘s-Hertogenbosch, The Netherlands;
2. Julius Centre for Health Sciences and Primary Care, University Medical Centre Utrecht, Utrecht, The Netherlands;
3. Star-shl Diagnostic Centres, Etten-Leur, The Netherlands;
4. Department of Health Technology and Services Research, Technical Medical Centre, University of Twente, Enschede, The Netherlands