[1] Harvard Med Sch, Beth Israel Deaconess Med Ctr, Div Otolaryngol Head & Neck Surg, 98 Binney St,Shapiro Bldg Ground Floor, Boston, MA 02115 USA
[2] Univ Penn Hlth Syst, Dept Otorhinolaryngol Head & Neck Surg, Philadelphia, PA USA
[3] UCONN Hlth, Div Otolaryngol Head & Neck Surg, Farmington, CT USA