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Amazon.com: 3M 6152 Littmann Cardiology IV Stainless Steel Chestpiece Stethoscope with 27" Black Tube : Industrial & Scientific
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3M Littmann Cardiology IV Stethoscope, Smoke-Finish, Black Tube, Black Stem and Black Headset, 6232 - Walmart.com
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Amazon.com: 3M 6151 Littmann Cardiology IV Stainless Steel Chestpiece Stethoscope with 22" Black Tube : Industrial & Scientific
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