1. School of Medicine, Universidade de Santiago de Compostela (USC), 15782 Santiago de Compostela, Spain
2. Otorhinolaryngology—Head and Neck Surgery Department, Complexo Hospitalario Universitario A Coruña (CHUAC), 15006 A Coruña, Spain
3. Otorhinolaryngology—Head and Neck Surgery Department, Hospital San Rafael (HSR) de A Coruña, 15006 A Coruña, Spain
4. Young-Otolaryngologists of the International Federation of Oto-Rhino-Laryngological Societies (YO-IFOS) Study Group, 75000 Paris, France
5. Otorhinolaryngology—Head and Neck Surgery Department, Hospital Universitario Donostia—Biodonostia Research Institute, 20014 Donostia, Spain
6. Department of Otolaryngology, Polyclinique de Poitiers, Elsan Hospital, 86000 Poitiers, France
7. Department of Otolaryngology—Head & Neck Surgery, Foch Hospital, School of Medicine, UFR Simone Veil, Université Versailles Saint-Quentin-en-Yvelines (Paris Saclay University), 91190 Paris, France
8. Department of Human Anatomy and Experimental Oncology, UMONS Research Institute for Health Sciences and Technology, University of Mons (UMons), 7000 Mons, Belgium
9. Department of Otolaryngology—Head & Neck Surgery, Centre Hospitalier Universitaire Saint-Pierre, 1000 Brussels, Belgium
10. Maxillofacial Surgery Operative Unit, Department of Medicine, Surgery and Pharmacy, University of Sassari, 07100 Sassari, Italy
11. Faculty of Medicine and Surgery, University of Enna “Kore”, 94100 Enna, Italy
12. Otolaryngology Unit, Santi Paolo e Carlo Hospital, Department of Health Sciences, Università degli Studi di Milano, 20122 Milan, Italy
13. Service of Otolaryngology, Hospital Complex of Santiago de Compostela, 15701 Santiago de Compostela, Spain
14. Health Sciences Programme, International Center for Doctorate (EIDUDC), Universidade da Coruña (UDC), 15001 A Coruña, Spain