1. Department of Cardiothoracic and Vascular Surgery, German Heart Center Berlin, 13353 Berlin, Germany
2. German Centre for Cardiovascular Research, Partner Site Berlin, 13353 Berlin, Germany
3. Berlin Institute of Health Center for Regenerative Therapies, Charité – Universitätsmedizin Berlin, 13353 Berlin, Germany
4. Department of Health Sciences and Technology, ETH Zürich, 8093 Zürich, Switzerland
5. Clinic for Cardiovascular Surgery, Charité – Universitätsmedizin Berlin, 13353 Berlin, Germany
6. Institute for Regenerative Medicine, University of Zürich, 8044 Zürich, Switzerland
7. Wyss Zürich, University of Zürich and ETH Zürich, 8092 Zürich, Switzerland