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- AAO-HNS, "Frequently Asked Questions About Hearing Aid Development." http://www.entlink.net/history/exhibits/Hearing-Aid-FAQ.cfm
- Alpiner, Jerome G.; Mulvey, Megan; Smith, Randall D. "The Hearing Aid Decision: Answers to Your Many Questions." Ramie, 2007.
- AmericaHears Inc., "Looking at the History of Hearing Aids: The Past, Present, and Future of Hearing Aid Technology." http://hearing-aids.americahears.com/aid-technology.html
- American Academy of Otolaryngology -- Head and Neck Surgery, "Buying a Hearing Aid." http://www.entnet.org/healthinfo/hearing/hearing_aid.cfm
- American Academy of Otolaryngology -- Head and Neck Surgery, "Cochlear Implants." http://www.entnet.org/healthinfo/ears/cochlear-implant.cfm
- American Speech-Language-Hearing Association, "Hearing Aids." http://www.asha.org/public/hearing/treatment/hearing_aids
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- Cochlear Implants http://www.fda.gov/cdrh/cochlear/
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- Medical News Today, "Duke University Study Finds Hearing Aids are Underused." June 3, 2006. http://www.medicalnewstoday.com/printerfriendlynews.php?newsid=44479
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- National Institute on Deafness and Other Communication Disorders,
- "Hearing Aids." http://www.nidcd.nih.gov/health/hearing/hearingaid.asp
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- U.S. News & World Report, May 22, 2006, Vol. 140, Issue 19, pp. 53-55.