1. Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland
2. Department of Otolaryngology–Head and Neck Surgery, Johns Hopkins School of Medicine, Baltimore, Maryland
3. Cochlear Center for Hearing and Public Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland
4. OptumLabs, Cambridge, Massachusetts
5. Department of Otolaryngology–Head and Neck Surgery, University of Illinois at Chicago, Chicago
6. AARP Services, Inc, Washington, DC