1. Department of Tissue Engineering and Textile Implants, AME-Helmholtz Institute for Biomedical Engineering, University Hospital RWTH Aachen, Aachen, Germany.
2. Department for Cardiothoracic and Vascular Surgery, University Hospital RWTH Aachen, Aachen, Germany.
3. Institute for Textile Engineering, RWTH Aachen University, Aachen, Germany.