1. Department of Otorhinolaryngology and Head and Neck Surgery; University Hospital Hradec Kralove; Charles University in Prague; Faculty of Medicine in Hradec Kralove; Czech Republic
2. Department of Dentistry; University Hospital Hradec Kralove; Charles University in Prague; Faculty of Medicine in Hradec Kralove; Czech Republic
3. Department of Computed Technology; Charles University in Prague; Faculty of Medicine in Hradec Kralove; Czech Republic
4. Department of Otorhinolaryngology and Head and Neck Surgery; Regional Hospital Pardubice; Faculty of Health Studies; University of Pardubice; Czech Republic
5. Department of Oral and Maxillofacial Surgery; Regional Hospital Pardubice; Faculty of Health Studies; University of Pardubice; Czech Republic
6. Department of Otorhinolaryngology; University Hospital Ostrava; Faculty of Medicine Ostrava; Czech Republic
7. Department of Oral and Maxillofacial Surgery; University Hospital Ostrava; Czech Republic