1. Department of Otorhinolaryngology, Head and Neck Surgery Medical University of Vienna Vienna Austria
2. Department of Otorhinolaryngology University Hospital St. Pölten St. Pölten Austria
3. Center of Anatomy and Cell Biology Medical University of Vienna Vienna Austria
4. Department of Cranio‐Maxillofacial and Oral Surgery Medical University of Vienna Vienna Austria
5. Institute for Head and Neck Diseases Evangelical Hospital Vienna Vienna Austria