[1] Hosp Univ Cent Asturias, Dept Otolaryngol, Oviedo, Spain
[2] Inst Univ Oncol Principado Asturias, Oviedo, Spain
[3] Radboud Univ Nijmegen, Med Ctr, Dept Otolaryngol Head & Neck Surg, NL-6525 ED Nijmegen, Netherlands
[4] Montefiore Med Ctr, Albert Einstein Coll Med, Dept Surg, Bronx, NY 10467 USA
[5] Montefiore Med Ctr, Albert Einstein Coll Med, Dept Otolaryngol Head & Neck Surg, Bronx, NY 10467 USA
[6] Inst Oncol, Dept Radiat Oncol, Ljubljana, Slovenia
[7] Univ Liverpool, Sch Dent, Liverpool L69 3BX, Merseyside, England
[8] Montefiore Med Ctr, Albert Einstein Coll Med, Dept Med, Div Oncol, Bronx, NY 10467 USA
[9] Uludag Univ, Sch Med, Dept Otolaryngol Head & Neck Surg, Bursa, Turkey
[10] Vrije Univ Amsterdam, Med Ctr, Dept Otolaryngol Head & Neck Surg, Amsterdam, Netherlands
[11] Icahn Sch Med Mt Sinai, Dept Surg, Div Metab Endocrine & Minimally Invas Surg, New York, NY 10029 USA
[12] Tanta Univ, Dept Otolaryngol Head & Neck Surg, Tanta, Egypt
[13] Mem Sloan Kettering Canc Ctr, Dept Surg, New York, NY 10021 USA
[14] Univ Udine, ENT Clin, I-33100 Udine, Italy