1. Department of Cardiovascular Surgery, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany
2. Department of Cardiothoracic and Vascular Surgery, German Heart Centre Berlin, Berlin, Germany
3. German Center for Cardiovascular Research, Partner Site, Berlin, Germany
4. Department of Health Science and Technology, Swiss Federal Institute of Technology (ETH) Zurich, Zurich, Switzerland