1. Department of Cardiovascular and Thoracic Surgery; University of Ulm; Ulm Germany
2. Department of Biomolecular Chemistry, Faculty of Medicine; Medical University of Lodz; Lodz Poland
3. Department of Cardiac Anesthesiology; University Hospital Ulm; Ulm Germany
4. Department of Cardiovascular Physiology, Interdepartmental Chair of Experimental and Clinical Physiology; Medical University of Lodz; Lodz Poland