1. Otto Loewi Research Center, Division of Pharmacology Medical University of Graz, Graz, Austria
2. Division of Anaesthesiology for Cardiovascular and Thoracic Surgery and Intensive Care Medicine, Department of Anesthesiology and Intensive Care Medicine, Medical University of Graz, Graz, Austria
3. Division of Cardiology, Department of Internal Medicine, Medical University of Graz, Graz, Austria
4. Clinical Institute of Medical Chemical Laboratory Diagnostics, Medical University of Graz, Graz, Austria