1. Department of Otorhinolaryngology; University Medical Center Göttingen; Georg-August-University Göttingen; Göttingen Germany
2. Division of Plastic Surgery; Department of Trauma Surgery, Orthopaedics and Plastic Surgery; University Medical Center Göttingen; Georg-August-University Göttingen; Göttingen Germany
3. Electrical Engineering and Information Engineering; University of Applied Science Offenburg; Offenburg Germany