1. Division of Maxillofacial Surgery, Department of Interdisciplinary Medicine University of Bari Bari Italy
2. Operative Unit of Maxillofacial Surgery, Otolaryngology and Dentistry Fondazione IRCCS Casa Sollievo della Sofferenza San Giovanni Rotondo (Fg) Italy
3. Department of Otolaryngology – Head Neck Surgery Hospital of Magenta Milano Italy
4. Division of Maxillofacial Surgery, Città Della Salute e Della Scienza Hospital University of Torino Torino Italy