1 Medical Clinic II (Cardiology/Angiology/Intensive Care Medicine), University Heart Center Lübeck, University Hospital Schleswig-Holstein, Ratzeburger Allee 160, 23538, Lübeck, Germany.
2 Medical Clinic II (Cardiology/Angiology/Intensive Care Medicine), University Heart Center Lübeck, University Hospital Schleswig-Holstein, Ratzeburger Allee 160, 23538, Lübeck, Germany. ingo.eitel@uskh.de.