1. Institute for Regenerative Medicine, University of Zurich, Zurich, Switzerland
2. Wyss Translational Center Zurich, University of Zurich and ETH Zurich, Zurich, Switzerland
3. Department of Cardiovascular Surgery, Charité Universitätsmedizin Berlin, Berlin, Germany
4. Department of Health Sciences and Technology, Swiss Federal Institute of Technology in Zurich, Zurich, Switzerland
5. Department of Cardiothoracic and Vascular Surgery, German Heart Center Berlin, Berlin, Germany
6. German Center of Cardiovascular Research, Partner Site Berlin, Berlin, Germany