[1] Univ Santiago De Compostela USC, Sch Med, Santiago De Compostela 15782, Spain
[2] Complexo Hosp Univ A Coruna CHUAC, Otorhinolaryngol Head & Neck Surg Dept, La Coruna 15006, Spain
[3] Hosp San Rafael HSR A Coruna, Otorhinolaryngol Head & Neck Surg Dept, La Coruna 15006, Spain
[4] Young Otolaryngologists Int Federat Oto Rhino Lary, F-75000 Paris, France
[5] Hosp Univ Donostia, Biodonostia Res Inst, Otorhinolaryngol Head & Neck Surg Dept, Donostia San Sebastian 20014, Spain
[6] Elsan Hosp, Polyclin Poitiers, Dept Otolaryngol, F-86000 Poitiers, France
[7] Paris Saclay Univ, Univ Versailles St Quentin Yvelines, Foch Hosp, Sch Med,UFR Simone Veil,Dept Otolaryngol Head & Ne, F-91190 Paris, France
[8] Univ Mons UMons, UMONS Res Inst Hlth Sci & Technol, Dept Human Anat & Expt Oncol, B-7000 Mons, Belgium
[9] Ctr Hosp Univ St Pierre, Dept Otolaryngol Head & Neck Surg, B-1000 Brussels, Belgium
[10] Univ Sassari, Dept Med Surg & Pharm, Maxillofacial Surg Operat Unit, I-07100 Sassari, Italy
[11] Univ Enna Kore, Fac Med & Surg, I-94100 Enna, Italy
[12] Univ Milan, Santi Paolo & Carlo Hosp, Dept Hlth Sci, Otolaryngol Unit, I-20122 Milan, Italy
[13] Hosp Complex Santiago De Compostela, Serv Otolaryngol, Santiago De Compostela 15701, Spain
[14] Univ Coruna UDC, Int Ctr Doctorate EIDUDC, Hlth Sci Programme, La Coruna 15001, Spain