1. Institute
of Biomaterials, Department of Materials Science and Engineering, University of Erlangen-Nuremberg, 91058 Erlangen, Germany
2. Department
of Plastic and Hand Surgery, University of Erlangen-Nuremberg, 91054 Erlangen, Germany
3. Department
of Hand, Plastic, and Reconstructive Surgery, Burn Center, BG Trauma
Center Ludwigshafen and Department of Plastic and Hand Surgery, University of Heidelberg, Heidelberg, Germany