1 Maxillofacial Surgery Unit, Department of Medicine, Surgery and Pharmacy, University of Sassari, Viale San Pietro 10, 07100 Sassari, Italy.
2 Biomedical Science Department, PhD School of Biomedical Science, University of Sassari, Sassari, Italy.
3 Maxillofacial Surgery Operative Unit, Department of Mental Health and Sense Organs, University Hospital of Siena, Santa Maria Le Scotte, Siena, Italy.
4 Department of Laryngology and Bronchoesophagology, Mons School of Medicine, UMONS. Research Institute for Health Sciences and Technology, EpiCURA Hospital, University of Mons (UMons), Mons, Belgium.
5 Department of Otolaryngology-Head Neck Surgery, Elsan Polyclinic of Poitiers, Poitiers, France.
6 Department of Otorhinolaryngology-Head & Neck Surgery, Hospital Universitario Donostia, San Sebastian, Spain.
7 Division of Otolaryngology-Head and Neck Surgery, Centre Hospitalier de l'Université de Montréal (CHUM), Université de Montéal, Montreal, Quebec Canada.