1. Department of Cardiothoracic, Transplantation and Vascular Surgery Hannover Medical School Hannover Germany
2. Cardio‐Thoracic Surgery Department Maastricht University Medical Centre (MUMC+) Maastricht The Netherlands
3. Institute of Functional and Applied Anatomy, Research Core Unit Electron Microscopy Hannover Medical School Hannover Germany
4. Division of Cardiothoracic and Vascular Surgery Pontchaillou University Hospital Rennes France
5. Medimplant GmbH Hannover Germany