1. National Institute on Deafness and Other Communication Disorders (2023, August 07). Quick Statistics about Hearing, Available online: https://www.nidcd.nih.gov/health/statistics/quick-statistics-hearing.
2. President’s Council of Advisors on Science and Technology (2023, August 07). Aging America & Hearing Loss: Imperative of Improved Hearing Technologies, Available online: https://obamawhitehouse.archives.gov/sites/default/files/microsites/ostp/PCAST/pcast_hearing_tech_letterreport_final.pdf.
3. Food and Drug Administration (2023, August 07). Medical Devices; Ear, Nose, and Throat Devices; Establishing Over-the-Counter Hearing Aids. In. Vol 87 FR 50698. 17 August 2022, Available online: https://www.federalregister.gov/documents/2022/08/17/2022-17230/medical-devices-ear-nose-and-throat-devices-establishing-over-the-counter-hearing-aids.
4. American Speech-Language-Hearing Association (2023, November 07). Over-the-Counter Hearing Aids (OTCs) 1 Year Later. Available online: https://www.asha.org/news/2023/over-the-counter-hearing-aids-otcs-1-year-later/#:~:text=Only%202%25%20of%20American%20adults,27%20%E2%80%93%20July%207%2C%202023.
5. American Speech-Language-Hearing Association (2023, August 07). Audiologist and Hearing Aid Dispenser: What Is the Difference?. Available online: https://www.asha.org/aud/otc-hearing-aid-toolkit/audiologist-and-hearing-aid-dispenser-what-is-the-difference/.