[1] Univ Washington, Dept Otolaryngol Head & Neck Surg, Seattle, WA 98195 USA
[2] Univ Washington, Dept Elect Engn, Seattle, WA 98195 USA
[3] Virginia Mason Med Ctr, Div Facial Plast Surg, Dept Otolaryngol Head & Neck Surg, Seattle, WA 98101 USA
[4] Seattle Childrens Hosp, Dept Otolaryngol, Seattle, WA USA
[5] Univ Michigan Hlth Syst, CS Mott Childrens Hosp, Div Pediat, Otolaryngol Head & Neck Surg, 1540 East Hosp Dr,CW 5-705, Ann Arbor, MI 48109 USA