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Stethoscope
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How Does A Stethoscope Work?
Electronic stethoscopes aid veterinarians with hearing loss - News - VIN
Tips on How to Use a Stethoscope | Allen School of Health Science
Biomedical Engineers - How Stethoscopes Work? Sound has been used as a diagnostic tool for millennia. You can learn a lot with an ear to a person's chest -- that the heart
