1 Division of Plastic, Aesthetic and Reconstructive Surgery, Department of Surgery, Medical University Graz, Austria; COREMED - Cooperative Centre for Regenerative Medicine, Joanneum Research Forschungsgesellschaft mbH, Graz, Austria. Electronic address: lars.kamolz@medunigraz.at.
2 Division of Plastic, Aesthetic and Reconstructive Surgery, Department of Surgery, Medical University Graz, Austria; COREMED - Cooperative Centre for Regenerative Medicine, Joanneum Research Forschungsgesellschaft mbH, Graz, Austria.