The Encyclopedia of Deafness and Hearing DisordersBook - 2000
The National Institute on Deafness and Other Communication Disorders reports that more than 28 million Americans are deaf or hard of hearing; over 30 million more are exposed to dangerous levels of noise. Levels of hearing impairment vary from mild but important loss of sensitivity to a total loss of hearing. The Encyclopedia of Deafness and Hearing Disorders
Publisher: New York : Facts On File, c2000
Edition: 2nd ed. --
Branch Call Number: 617.8003/TUR 4565 1
Alternative Title: Deafness and hearing disorders
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