1. Comprehensive Heart Failure Center; University of Würzburg; Versbacher Straße 9 97078 Würzburg Germany
2. West German Heart and Vascular Center Essen; University Hospital Essen; Hufelandstraße 55 45147 Essen Germany
3. Leibniz-Institut für Analytische Wissenschaften - ISAS - e.V.; Bunsen-Kirchhoff-Straße 11 44139 Dortmund Germany
4. Institute of Pharmacology and Toxicology; University of Würzburg; Versbacher Straße 9 97078 Würzburg Germany
5. Ben May Department for Cancer Research; University of Chicago; Chicago IL 60637 USA
6. Institute of Pharmacology and Clinical Pharmacology; Düsseldorf University Hospital; Universtitätsstraße 1 40225 Düsseldorf Germany
7. Cardiovascular Research Institute Düsseldorf (CARID); Heinrich-Heine-University; Universtitätsstraße 1 40225 Düsseldorf Germany