1. Oregon Hearing Research Center, Otolaryngology, Oregon Health & Science University, Portland, OR, USA,
2. National Center for Rehabilitative Auditory Research, VA Portland Health Care System, Portland, OR, USA,
3. Hearing and Speech Sciences, Vanderbilt University School of Medicine, Nashville, TN, USA,
4. Pediatrics, Vanderbilt University School of Medicine, Nashville, TN, USA, and
5. Neonatology, Pediatrics, Oregon Health & Science University, Portland, OR, USA