1. Department of Cardiovascular Surgery, Heart center Brandenburg, University Hospital Brandenburg Medical School Theodor Fontane, Faculty of Health Sciences Brandenburg, Bernau bei Berlin, Germany
2. Department of Cardiovascular Surgery, Heart Center Brandenburg, University Hospital Brandenburg Medical School Theodor Fontane, Faculty of Health Sciences Brandenburg, Bernau, Germany
3. Department of Cardiac Surgery, Sana Hospital, Heart Center Cottbus GmbH, Cottbus, Germany
4. Department of Cardiac Surgery, Department of Cardiac Surgery, Sana Cardiac Centre Cottbus, Germany, Cottbus, Germany
5. Department of Cardiology, Oberhavel Kliniken GmbH, Hennigsdorf, Germany
6. Departement of Cardiology, Oberhavel Kliniken GmbH, Hennigsdorf, Germany
7. Department of Cardiology, University Hospital, Brandenburg Medical School Theodor Fontane, Faculty of Health Sciences Brandenburg, Brandenburg an der Havel, Germany
8. Department of Cardiology, Alexianer St. Josef Hospital Potsdam, Potsdam, Germany