1 Division of Plastic, Aesthetic and Reconstructive Surgery, Research Unit for Tissue Regeneration, Repair and Reconstruction, Department of Surgery, Medical University of Graz, Auenbruggerplatz 29, A-8036 Graz, Austria. Electronic address: lars.kamolz@medunigraz.at.
2 Division of Plastic, Aesthetic and Reconstructive Surgery, Research Unit for Tissue Regeneration, Repair and Reconstruction, Department of Surgery, Medical University of Graz, Auenbruggerplatz 29, A-8036 Graz, Austria.