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Hearing Test

When sound waves reach the ear, they are gathered by the funnel-shaped outer ear and are channeled into the middle ear. At the entrance to the middle ear, sound waves hit the tympanic membrane, or ear...
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Many Teens 'Vaping' for Flavor, Not Nicotine

Study found that only about a fifth of 12th graders who used an e-cigarette used a nicotine substance

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