1. Division of Clinical Biochemistry, Innsbruck Biocenter, Innsbruck Medical University, A-6020 Innsbruck, Austria
2. Department of Pharmacology and Toxicology, University of Graz, A-8010 Graz, Austria
3. Department of Cardiac Surgery, Innsbruck Medical University, A-6020 Innsbruck, Austria
4. Department of Internal Medicine, Division of Cardiology, Innsbruck Medical University, A-6020 Innsbruck, Austria