3M Littmann Cardiology IV 27" Diagnostic Stethoscope | AllHeart.com
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Amazon.com: PrimaCare DS-9290-BK Adult Size 22" Stethoscope for Diagnostics and Screening Instrument, Lightweight and Aluminum Double Head Flexible Stethoscope, Black : Industrial & Scientific
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3M Littmann Classic III Monitoring Stethoscope, Black Tube, 27 inch, 5620: Amazon.com: Industrial & Scientific