1. Division of Biological Chemistry; Biocenter; Innsbruck Medical University; Innsbruck Austria
2. Medical Clinic V (Nephrology, Hypertensiology, Endocrinolgy, Diabetology, Rheumatology) Mannheim Medical Faculty; University of Heidelberg; Mannheim Germany
3. Clinical Institute of Medical and Chemical Laboratory Diagnostics; Medical University of Graz; Graz Austria
4. Synlab Services GmbH; Synlab Academy; Mannheim Germany