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The top documents tagged [hearing aid improvements]
MarkeTrak VI: Measurement Drives Success – Consumer Feedback on Needs, Benefit, Satisfaction & Value Sergei Kochkin, Ph.D. Better Hearing Institute
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MarkeTrak VI: Hearing Aid Industry Market Tracking Survey 1984-2000 Sergei Kochkin, Ph.D. Knowles Electronics, Inc. February 27, 2002
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