1. Department of Otorhinolaryngology‐Head and Neck Surgery ‘G. Papanikolaou’ General Hospital Thessaloniki Greece
2. Department of Anatomy and Surgical Anatomy, School of Medicine Aristotle University of Thessaloniki Thessaloniki Greece
3. Vascular Centre Manchester Royal Infirmary Hospital, MFT NHS Trust Manchester UK
4. Endoscopic Skull Base Centre Athens Hygeia Hospital Athens Greece
5. Medical School University of Nicosia Nicosia Cyprus