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Uploaded by 602Communications on Aug 10, 2010
17311ResearchGraphic explain
Science & Technology
Standard YouTube License
Is this really a "scientific study" or a way to sell hearing aids?? I would be interested if it is really a study. Thanks.
hansenda8184 11 months ago
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Is this really a "scientific study" or a way to sell hearing aids?? I would be interested if it is really a study. Thanks.
hansenda8184 11 months ago