1. Department of General, Visceral, Thoracic and Vascular Surgery, Frankfurt-Höchst City Hospital, Frankfurt am Main, Germany.
2. Department of Cell and Tissue Engineering, Fraunhofer Institute for Interfacial Engineering, Stuttgart, Germany.
3. Department of Women's Health, Research Institute for Women's Health, University Tuebingen, Tuebingen, Germany.
4. Cardiovascular Research Laboratories, Department of Medicine/Cardiology, David Geffen School of Medicine, UCLA, Los Angeles, California.
5. Tissue Testing Technologies LLC, North Charleston, South Carolina.
6. Department of Bioengineering, Clemson University, Clemson, South Carolina.
7. Department of Regenerative Medicine and Cell Biology, Medical University of South Carolina, South Carolina.
8. Department of Thoracic, Cardiac and Thoracic Vascular Surgery, University Hospital Frankfurt, Frankfurt, Germany.