Hearing Loss A Guide To Prevention And Treatment Harvard Medical School

Hearing Loss A Guide To Prevention And Treatment Harvard Medical School (PDF ePub eBook)

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hearing loss is one of the biggest public health issues facing the elderly about 25 percent of those between 65 and 74 suffer from some form of hearing loss according to the national institute on deafness and other hearing disordersthat number increases to about 50 percent for those over 75