[1] Charite Campus Benjamin Franklin, Dept Cardiol, Berlin, Germany
[2] Charite Campus Virchow Klinikum CVK, Dept Hematol & Oncol, Berlin, Germany
[3] Univ Med Ctr Gottingen UMG, Dept Cardiol & Pneumol, Gottingen, Germany
[4] Charite Campus Virchow Klinikum CVK, Dept Cardiol, Berlin, Germany