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3M™ Littmann® CORE Digital Stethoscope, Black Chestpiece, Tube, Stem and Headset, 27 inch, 8480: Amazon.com: Industrial & Scientific
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Eko's stethoscope shows the potential of digital technology to reinvent health care - The Washington Post
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3M™ Littmann® CORE Digital Stethoscope, Black Chestpiece, Tube, Stem and Headset, 27 inch, 8480: Amazon.com: Industrial & Scientific
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