1. Department of Cardiology Thoraxcentrum Twente, Medisch Spectrum Twente Enschede The Netherlands
2. Department of Health Technology and Services Research, Faculty BMS Technical Medical Centre, University of Twente Enschede The Netherlands
3. Department of Cardiology Hospital Group Twente, Almelo and Hengelo Almelo The Netherlands
4. Department of Clinical Laboratory Medlon b.v., Medisch Spectrum Twente Enschede The Netherlands
5. Department of Internal Medicine Medisch Spectrum Twente Enschede The Netherlands