[1] “Kore” University of Enna,Faculty of Medicine and Surgery
[2] Rhynology Study Group of the Young-Otolaryngologists of the International Federations of Otorhino-Laryngological Societies (YO-IFOS),Otolaryngology Unit, Santi Paolo E Carlo Hospital, Department of Health Sciences
[3] Università Degli Studi Di Milano,Service of Otolaryngology
[4] Hospital Complex of Santiago de Compostela,Maxillofacial Surgery Unit
[5] University Hospital of Sassari,ENT Surgeon, Department of Oto
[6] Aix-Marseille Univesity,Rhino
[7] Hospital Universitario Donostia,Laryngology Head and Neck Surgery, La Conception University Hospital
[8] Western University,ENT
[9] Hospital Universitario Marqués de Valdecilla,Head and Neck Department
[10] A Coruña University Hospital Complex,Department of Otolaryngology
[11] Universidad de Sevilla, Head and Neck Surgery, Schulich School of Medicine
[12] University of Mons (UMons),Rhinology, Endoscopic Sinus and Skull Base Surgery
[13] University of Catania,Department of Otorhinolaryngology
[14] Valdecilla Biomedical Research Institute,Servicio de Otorrinolaringología, Hospital Universitario Virgen Macarena, Sevilla. Hospital Quirónsalud Sagrado Corazón, Seville. Departamento de Cirugía
[15] IDIVAL,Department of Anatomy and Experimental Oncology, Mons School of Medicine, UMONS Research Institute for Health Sciences and Technology