[1] UT Hlth San Antonio, Dept Otolaryngol Head & Neck Surg, Pediat Otolaryngol, 7703 Floyd Curl Dr MC-7777, San Antonio, TX 78229 USA
[2] Univ Pittsburgh, Med Ctr, Childrens Hosp Pittsburgh, Div Pediat Otolaryngol, Pittsburgh, PA 15261 USA
[3] Univ Washington, Dept Otolaryngol Head & Neck Surg, Med Ctr, 1959 NE Pacific St 3rd Floor, Seattle, WA 98195 USA
[4] Univ Pittsburgh, Med Ctr, Childrens Hosp Pittsburgh, Dept Plast Surg, Pittsburgh, PA 15261 USA
[5] Univ Pittsburgh, Med Ctr, Dept Radiol, Childrens Hosp Pittsburgh, Pittsburgh, PA 15261 USA
[6] Univ Pittsburgh, Childrens Hosp Pittsburgh, Med Ctr, Dept Otolaryngol, 203 Lothrop St,5th Floor, Pittsburgh, PA 15261 USA