1. Division of Applied Cachexia Research, Department of Cardiology; Charité Campus Virchow-Klinikum; Augustenburger Platz 1 D-13353 Berlin Germany
2. Department of Cardiothoracic and Vascular Surgery; Deutsches Herzzentrum Berlin; Germany
3. Department of Internal Medicine II; University of Regensburg; Germany
4. Clinical Cardiology, National Heart and Lung Institute; Imperial College; London UK