1. Department of Plastic and Aesthetic, Reconstructive and Hand Surgery, AGAPLESION Markus Hospital Frankfurt, 60431 Frankfurt, Germany
2. Department for Oral, Cranio-Maxillofacial and Facial Plastic Surgery, University Hospital of the Goethe University Frankfurt, 60528 Frankfurt, Germany
3. Department of Plastic, Aesthetic Reconstructive and Hand Surgery, AGAPLESION Evangelical Hospital Giessen, 35398 Giessen, Germany