[1] House Ear Res Inst, Childrens Auditory Res & Evaluat Ctr, Los Angeles, CA 90057 USA
[2] Univ Kansas, Med Ctr, Dept Speech & Hearing, Kansas City, KS 66103 USA
[3] Univ Colorado, Dept Speech Language & Hearing Sci, Boulder, CO 80309 USA
[4] Childrens Hosp & Med Ctr, Dept Audiol, Seattle, WA 98105 USA
[5] San Diego State Univ, Sch Speech Language & Hearing Sci, San Diego, CA 92182 USA
[6] Johns Hopkins Sch Med, Div Otol Neurotol & Skull Base Surg, Baltimore, MD USA
[7] Brown Univ, Women & Infants Hosp, Dept Pediat, Providence, RI 02908 USA