1. Central Institute for Medical and Chemical Laboratory Diagnosis, University Hospital Innsbruck, Anichstrasse 35, 6020 Innsbruck, Austria
2. Departments of Chemical Pathology and Cardiology, St George’s Hospital, London, UK
3. Maastricht University Medical Center , Maastricht , The Netherlands
4. University of Eastern Finland and Eastern Finland Laboratory Centre , Kuopio , Finland
5. HUSLAB Laboratories, Department of Clinical Chemistry, Helsinki University Central Hospital , Helsinki , Finland
6. Aalborg University Hospital , Aalborg , Denmark
7. University of Zagreb , Zagreb , Croatia
8. Regionale Kliniken Holding RKH GmbH , Ludwigsburg , Germany