1. Division of Otorhinolaryngology; Department of Surgical; Microsurgical, and Medical Sciences, University of Sassari; Sassari Italy
2. Division of Otorhinolaryngology; Department of Biotechnology and Life Sciences; University of Insubria; Varese Italy
3. Head and Neck Surgery & Forensic Dissection Research Center (HNS & FDRC), Department of Biotechnology and Life Sciences, University of Insubria; Varese Italy
4. Department of Otorhinolaryngology; University of Brescia; Brescia Italy