1. Department of Internal Medicine I, Centre of Cardiovascular Medicine; University of Würzburg, University Hospital Würzburg; Klinikstrasse 6-8 97070 Würzburg Germany
2. Institute for Pharmacology and Toxicology; University of Würzburg; Würzburg Germany
3. Clinical Trial Centre; University of Leipzig; Leipzig Germany
4. Division of Cardiology, Department of Cardiologic, Thoracic and Vascular Sciences; University of Padua; Padua Italy
5. Department of Internal Medicine B-Cardiology; University of Greifswald; Greifswald Germany
6. Department of Molecular and Clinical Medicine; University of Gothenburg; Gothenburg Sweden
7. Department of Cardiology; University of Heidelberg; Heidelberg Germany