1. Institute for Pathophysiology; West German Heart and Vascular Centre Essen; University of Essen Medical School; Essen Germany
2. Institute for Clinic of Cardiology; West German Heart and Vascular Centre Essen; University of Essen Medical School; Essen Germany
3. Department of Biomimetics; Hochschule of Bremen; City University of Applied Science; Bremen Germany
4. Diagnostic and Interventional Radiology; University Hospital Tuebingen; Tuebingen Germany