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Research Articles

Americans Hear as Well or Better Today Compared With 40 Years Ago: Hearing Threshold Levels in the Unscreened Adult Population of the United States, 1959–1962 and 1999–2004

Hoffman, Howard J.1; Dobie, Robert A.2; Ko, Chia-Wen1; Themann, Christa L.3; Murphy, William J.3

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doi: 10.1097/AUD.0b013e3181e9770e
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