1 Department of Cardiology, University Heart and Vascular Centre Hamburg, Hamburg, Germany. Electronic address: d.csengeri@uke.de.
2 German Centre of Cardiovascular Research (DZHK), Partner Site Hamburg/Kiel/Lübeck, Germany; Department of Cardiovascular Surgery, University Heart and Vascular Center Hamburg, Hamburg, Germany.
3 Department of Cardiology, University Heart and Vascular Centre Hamburg, Hamburg, Germany; German Centre of Cardiovascular Research (DZHK), Partner Site Hamburg/Kiel/Lübeck, Germany.