[1] Deutsch Herzzentrum Berlin, D-13353 Berlin, Germany
[2] Charite, Cardiovasc Res Ctr, Berlin, Germany
[3] DHZB, Klin Herz Gefass & Thoraxchirurg, Berlin, Germany
[4] DHZB Berlin, Klin Herz Gefass & Thoraxchirurg, Berlin, Germany
[5] Kings Coll London, Randall Div Cell & Mol Biophys, London WC2R 2LS, England
[6] Kings Coll London, Div Cardiovasc, London WC2R 2LS, England
[7] Inst Clin Chem & Pathobiochem, Berlin, Germany
[8] Inst Med Stat & Clin Epidemiol, Berlin, Germany