1. Department of Otorhinolaryngology‐Head and Neck Surgery ‘G. Papanikolaou’ General Hospital Thessaloniki Greece
2. Department of Otorhinolaryngology‐Head and Neck Surgery Medical School Democritus University of Thrace Alexandroupolis Greece
3. Department of Anatomy and Surgical Anatomy Faculty of Health Sciences Medical School Aristotle University of Thessaloniki Thessaloniki Greece
4. Second Department of Paediatrics School of Medicine Aristotle University of Thessaloniki AHEPA University Hospital Thessaloniki Greece
5. Second Academic Department of Otorhinolaryngology‐Head and Neck Surgery Papageorgiou Hospital Aristotle University of Thessaloniki Greece
6. Department of Otorhinolaryngology‐Head and Neck Surgery Naval Hospital Athens Greece