[1] Cardiovasc Res Ctr, Div Appl Cachexia Res, Dept Cardiol, D-13353 Berlin, Germany
[2] Athens Univ Hosp, Dept Cardiol, Athens, Greece
[3] Athens Univ Hosp, Heart Failure Unit, Athens, Greece
[4] Univ London Imperial Coll Sci Technol & Med, Dept Clin Cardiol, Natl Heart & Lung Inst, London, England