1. Department of Internal Medicine University Medical Center GroningenUniversity of Groningen Groningen The Netherlands
2. Department of Laboratory Medicine University Medical Center GroningenUniversity of Groningen Groningen The Netherlands
3. Department of Cardiology University Medical Center GroningenUniversity of Groningen Groningen The Netherlands
4. Laboratory Corporation of America Holdings (LabCorp) Morrisville NC USA
5. Department of Biology ETH Zurich Zurich Switzerland