[1] Univ S Florida, Dept Otolaryngol Head & Neck Surg, 12901 Bruce B Downs Blvd,MDC73, Tampa, FL 33612 USA
[2] Univ S Florida, Coll Publ Hlth, Tampa, FL 33612 USA
[3] Icahn Sch Mt Sinai, Dept Otolaryngol Head & Neck Surg, New York, NY USA
[4] Univ Penn, Dept Neurosurg, Philadelphia, PA 19104 USA
[5] Univ Penn, Dept Otorhinolaryngol Head & Neck Surg, Philadelphia, PA 19104 USA
[6] Harvard Med Sch, Massachusetts Eye & Ear Infirm, Dept Otolaryngol, Boston, MA 02115 USA
[7] New England Ear Nose & Throat, Dept Otolaryngol, Newton, MA USA
[8] Thomas Jefferson Univ, Dept Otolaryngol Head & Neck Surg, Philadelphia, PA 19107 USA
[9] Temple Univ, Dept Otolaryngol Head & Neck Surg, Philadelphia, PA 19122 USA
[10] Univ Penn, Off Clin Res, Philadelphia, PA 19104 USA
[11] Childrens Hosp Philadelphia, Div Neurosurg, Philadelphia, PA 19104 USA
[12] Univ Maryland, Med Ctr, Dept Otolaryngol Head & Neck Surg, Baltimore, MD 21201 USA