1. Cochlear Center for Hearing and Public Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland
2. Department of Pediatrics, Johns Hopkins University School of Medicine, Baltimore, Maryland
3. Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland
4. Center on Aging and Health, Johns Hopkins University, Baltimore, Maryland
5. Department of Biostatistics, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland
6. HealthCore Inc, Watertown, Massachusetts
7. Department of Epidemiology, Milken Institute School of Public Health, The George Washington University, Washington, DC
8. Department of Otolaryngology–Head and Neck Surgery, Johns Hopkins School of Medicine, Baltimore, Maryland