1. National Center for Rehabilitative Auditory Research, VA Portland Health Care System, OR
2. Department of Otolaryngology - Head & Neck Surgery, Oregon Health & Science University, Portland
3. Oregon Hearing Research Center, Oregon Health & Science University, Portland
4. Department of Otolaryngology — Head and Neck Surgery, Division of Audiology, Mayo Clinic, Rochester, MN
5. Division of Allergy and Pulmonary Medicine, Department of Pediatrics, Washington University in St. Louis School of Medicine, MO
6. Hearing Sciences, Division of Clinical Neuroscience, School of Medicine, University of Nottingham, United Kingdom
7. National Institute for Health Research Biomedical Research Centre, University of Nottingham, United Kingdom
8. Audiology and Speech Center, Walter Reed National Military Medical Center, Bethesda, MD
9. Otolaryngology Branch, National Institute on Deafness and Other Communication Disorders, National Institutes of Health, Bethesda, MD
10. Department of Audiology, The Ohio State University Comprehensive Cancer Hospital–Arthur G. James Cancer Hospital and Richard J. Solve Research Institute, Columbus
11. School of Speech, Language, and Hearing Sciences, San Diego State University, CA
12. Communication Sciences Research Center, Cincinnati Children's Hospital Medical Center, OH
13. Division of Respiratory Medicine, Toronto Western Hospital, University Health Network and University of Toronto, Canada
14. Department of Health and Rehabilitation Sciences, University of Cape Town, South Africa
15. Translational Hearing Center, Biomedical Sciences, Creighton University, Omaha, NE
16. School of Public Health, Oregon Health & Science University, Portland
17. Department of Otolaryngology-Head & Neck Surgery, Division of Audiology, University of California, San Diego
18. Hearing Center of Excellence, Department of Defense, San Antonio, TX
19. Department of Medical Informatics and Clinical Epidemiology, Oregon Health & Science University, Portland