[1] Univ Washington, Dept Otolaryngol Head & Neck Surg, Med Ctr, 1959 Northeast Pacific St,UW Box 356515, Seattle, WA 98195 USA
[2] Seattle Childrens Hosp, Div Craniofacial Plast Surg, 4800 Sand Point Way NE,OB9 520, Seattle, WA 98105 USA
[3] Univ Washington, Div Pediat Otolaryngol Head & Neck Surg, Med Ctr, 1959 Northeast Pacific St,UW Box 356515, Seattle, WA 98195 USA