[1] Padova Univ, Dept Neurosci DNS, Otolaryngol Sect, Padua, Italy
[2] Azienda Osped Univ Padova, Unit Otorhinolaryngol Head & Neck Surg, I-35128 Padua, Italy
[3] Gen Hosp, Dept Otorhinolaryngol, Vienna, Austria
[4] Med Univ Vienna, Vienna, Austria
[5] Med Univ Vienna, Ctr Anat & Cell Biol, Div Anat, Vienna, Austria
[6] Mayo Clin, Dept Neurosurg, Rochester, MN USA
[7] Univ Brescia, Div Neurosurg, Dept Med & Surg Specialties Radiol Sci & Publ Hlth, Brescia, Italy
[8] Univ Calif Irvine, Dept Otolaryngol Head & Neck Surg, Irvine, CA USA
[9] Univ Pittsburgh, Sch Med, Dept Otolaryngol, Pittsburgh, PA USA
[10] Liverpool Univ Hosp NHS Fdn Trust, Dept Ear Nose & Throat, Liverpool, England
[11] Cambridge Univ Hosp NHS Fdn Trust, Addenbrookes Hosp, Dept Otolaryngol, Cambridge, England
[12] Univ Paris Cite, Hop Lariboisiere, Assistance Publ Hop Paris, Otorhinolaryngol & Skull Base Ctr, Paris, France
[13] Univ Paris Cite, Hop Lariboisiere, Assistance Publ Hop Paris, Dept Neurosurg, Paris, France
[14] Evangel Hosp, Inst Head & Neck Dis, Vienna, Austria
[15] Istanbul Univ Cerrahpasa, Cerrahpasa Med Fac, Dept Otorhinolaryngol, Istanbul, Turkiye
[16] Azienda Osped Univ Pisana, Dept Otolaryngol Head & Neck Surg, Pisa, Italy
[17] Catholic Univ, Sch Med, Inst Neurosurg, Rome, Italy
[18] Univ Brescia, Unit Otorhinolaryngol Head & Neck Surg, Dept Surg Specialties Radiol Sci & Publ Hlth, Brescia, Italy
[19] Univ Insubria Varese, Osped Circolo, Dept Biotechnol & Life Sci, Div Otorhinolaryngol,ASST Sette Laghi, Varese, Italy
[20] Osped Circolo Fdn Macchi, ASST Sette Laghi, Dept Neurosurg, Varese, Italy
[21] Univ Insubria, Osped St Anna, Dept Otolaryngol Head & Neck Surg, ASST Lariana, Como, Italy