[1] Univ Jena, Clin Internal Med 1, D-07747 Jena, Germany
[2] Bergmannsheil Hosp, Div Cardiol, Potsdam, Germany
[3] Stadt Klinikum Munchen GmbH, Klinikum Neuperlach, Dept Cardiol Pneumol & Internal Intens Care Med, Munich, Germany
[4] Univ Hosp, Clin Thorac Surg, Ulm, Germany
[5] Charite, Cardio Ctr Berlin, Berlin, Germany
[6] Clemenshosp, Clin Thorac Surg, Munster, Germany
[7] Charite, Cardio Ctr Berlin, Mainz, Germany
[8] Zoll Lifebridge GmbH, Ampfing, Germany
[9] HSK, Dr Horst Schmidt Kliniken GmbH, Clin Internal Med 1, Wiesbaden, Germany