1. Department of Central Medical Services, Institute for Laboratory Medicine, Kantonsspital Aarau AG, Aarau, Switzerland
2. Departments of Chemical Pathology and Cardiology, St George's Hospital, London, UK
3. HUSLAB, Department of Clinical Chemistry, Helsinki University Central Hospital, Finland
4. School of Medicine, University of Maryland, Baltimore, MD
5. University of Eastern Finland and Eastern Finland Laboratory Centre, Kuopio, Finland
6. Maastricht University Medical Center, Maastricht, the Netherlands
7. Department of Clinical Biochemistry, University Hospitals of North Midlands, Stoke-on-Trent, UK
8. Regionale Kliniken Holding RKH GmbH, Ludwigsburg, Germany
9. DIU Libertas International University, Zagreb, Croatia
10. Laboratory of Clinical Biochemistry, Haukeland University Hospital, Bergen, Norway
11. Asklepios Core-lab, Department of Laboratory Medicine, AZ St-Jan Hospital Bruges and Ghent University, Ghent, Belgium
12. Center for Medical Biochemistry, Clinical Center of Serbia, Belgrade, Serbia