1. Department of Otolaryngology-Head and Neck Surgery, 417 Army Share Fund Hospital, Athens, Greece
2. Department of Anatomy and Surgical Anatomy, Medical School, National and Kapodistrian University of Athens, Athens, Greece
3. Department of Otolaryngology-Head and Neck Surgery, Evaggelismos General Hospital, Athens, Greece
4. Plastic and Reconstructive Surgery Department, Evaggelismos General Hospital, Athens, Greece