[1] Prince Sultan Mil Med City, Dept Otolaryngol Head & Neck Surg, Riyadh, Saudi Arabia
[2] Univ Insubria, Dept Otorhinolaryngol, Varese, Italy
[3] Univ Brescia, Dept Otorhinolaryngol, Brescia, Italy
[4] Ohio State Univ, Dept Neurosurg, Wexner Med Ctr, Columbus, OH 43210 USA
[5] Ohio State Univ, Dept Otolaryngol Head & Neck Surg, Wexner Med Ctr, Columbus, OH 43210 USA
[6] Univ Insubria, Dept Neurosurg, Varese, Italy