[1] Univ Calif Irvine, Dept Otolaryngol Head & Neck Surg, Orange, CA USA
[2] Univ Pittsburgh, Med Ctr, Dept Otolaryngol, Pittsburgh, PA USA
[3] Univ Penn, Perelman Sch Med, Dept Otorhinolaryngol Head & Neck Surg, Philadelphia, PA USA
[4] Univ Calif Los Angeles, Dept Otolaryngol Head & Neck Surg, Los Angeles, CA USA
[5] Johns Hopkins Univ, Sch Med, Dept Otolaryngol Head & Neck Surg, Baltimore, MD USA
[6] NCI, Sinonasal & Skull Base Tumor Program, Surg Oncol Program, Ctr Canc Res,NIH, Bethesda, MD USA
[7] Univ Texas MD Anderson Canc Ctr, Dept Head & Neck Surg, Houston, TX USA
[8] Univ Washington, Dept Otolaryngol Head & Neck Surg, Seattle, WA USA
[9] Northwestern Univ, Northwestern Mem Hosp, Dept Pathol, Feinberg Sch Med, Chicago, IL USA
[10] Univ Utah, Dept Otolaryngol Head & Neck Surg, Salt Lake City, UT USA
[11] Univ Insubria, Circolo Hosp ASST Sette Laghi, Diagnost & Intervent Radiol Dept, Varese, Italy
[12] Univ Penn, Perelman Sch Med, Dept Radiat Oncol, Philadelphia, PA USA
[13] Rush Univ, Med Ctr, Dept Otorhinolaryngol Head & Neck Surg, Chicago, IL USA
[14] City Hope Comprehens Canc Ctr, Dept Pathol, Duarte, CA USA
[15] Univ Barcelona, Fac Med & Hlth Sci, Surg & Med Surg Specialties Dept, Barcelona, Spain
[16] Univ Med Ctr Hamburg Eppendorf, Dept Otorhinolaryngol, Hamburg, Germany
[17] Univ Claude Bernard Lyon I, Ctr Leon Berard, Dept Med Oncol, Lyon, France
[18] Harvard Med Sch, Dept Otolaryngol Head & Neck Surg, Boston, MA USA
[19] Periodista Pontificia Univ Catol Chile, Santiago, Chile
[20] Ohio State Univ, Dept Otolaryngol Head & Neck Surg, Columbus, OH USA
[21] Univ Miami, Miller Sch Med, Dept Otolaryngol Head & Neck Surg, Miami, FL 33136 USA
[22] Univ Insubria, Div Otorhinolaryngol, Dept Biotechnol & Life Sci, Varese, Italy
[23] Vanderbilt Univ, Med Ctr, Dept Otolaryngol Head & Neck Surg, Nashville, TN USA
[24] Hygeia Hosp, Rhinol & Endoscop Skull Base Unit, Athens, Greece
[25] Stanford Univ, Dept Pathol, Stanford, CA USA
[26] Univ Kansas, Med Ctr, Dept Otolaryngol Head & Neck Surg, Kansas City, KS USA
[27] Dept Otolaryngol Head & Neck Surg, Mayo Clin, Rochester, MN USA
[28] Univ Texas Hlth Sci Ctr Houston, McGovern Med Sch, Dept Otorhinolaryngol Head & Neck Surg, Houston, TX USA
[29] Mem Sloan Kettering Canc Ctr, Dept Surg, Head & Neck Serv, New York, NY USA
[30] Univ Florida, Coll Med, Dept Radiat Oncol, Jacksonville, FL USA
[31] Univ Hosp Pisa, Cisanello Hosp, Otolaryngol Head & Neck Surg, Pisa, Italy
[32] Edmundo Vasconcelos Hosp Complex, Sao Paulo ENT Ctr COF, Sao Paulo, SP, Brazil
[33] Univ Toronto, Univ Hlth Network, Dept Otolaryngol Head & Neck Surg, Toronto, ON, Canada
[34] Univ Padua, Sect Clin Pathol, Dept Med, I-35121 Padua, Italy
[35] Emory Univ, Sch Med, Dept Otolaryngol Head & Neck Surg, Atlanta, GA USA
[36] Univ North Carolina Chapel Hill, Dept Otolaryngol Head & Neck Surg, Chapel Hill, NC USA
[37] Univ Calif San Francisco, Dept Otolaryngol Head & Neck Surg, San Francisco, CA USA
[38] Rutgers New Jersey Med Sch, Dept Otolaryngol Head & Neck Surg, Newark, NJ USA
[39] Thomas Jefferson Univ, Dept Otolaryngol Head & Neck Surg, Philadelphia, PA 19107 USA
[40] Univ Hosp, Albert Einstein Coll Med, Montefiore Med Ctr, Dept Otorhinolaryngol Head & Neck Surg, Bronx, NY 10467 USA
[41] Washington Univ St Louis, Dept Otolaryngol Head & Neck Surg, St Louis, MO USA
[42] Univ Padua, Dept Neurosci, Sect Otorhinolaryngol Head & Neck Surg, Padua, Italy
[43] Stanford Univ, Dept Radiol, Stanford, CA USA
[44] Oakland Univ, Dept Otolaryngol Head & Neck Surg, William Beaumont Sch Med, Royal Oak, MI USA
[45] Amsterdam UMC, Dept Anesthesiol, Amsterdam, Netherlands
[46] Baylor Coll Med, Dept Otolaryngol Head & Neck Surg, Houston, TX USA
[47] Univ Coll London Ear Inst, London, England
[48] Johns Hopkins Univ, Sch Med, Dept Neurosurg, Baltimore, MD USA
[49] Univ Pittsburgh, Med Ctr, Dept Neurol Surg, Pittsburgh, PA USA
[50] Oregon Hlth & Sci Univ, Dept Otolaryngol Head & Neck Surg, Portland, OR USA