1 Medical Faculty, Division of Cardiology, Pulmonology, and Vascular Medicine, University Hospital Düsseldorf, Heinrich-Heine-University Düsseldorf, 40225, Düsseldorf, Germany.
2 Thoraxcenter, Department of Cardiology, Erasmus MC, Rotterdam, The Netherlands.
3 Medical Faculty, Division of Cardiology, Pulmonology, and Vascular Medicine, University Hospital Düsseldorf, Heinrich-Heine-University Düsseldorf, 40225, Düsseldorf, Germany. Christian.jung@med.uni-duesseldorf.de.