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3M Littmann Stethoscope, Cardiology IV, Black Tube, Black Chestpiece, 27 Inch, 6163: Amazon.com: Industrial & Scientific
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3M Littmann Cardiology IV Diagnostic Stethoscope, Standard-Finish Chestpiece, Black Tube, Stainless Stem, 6152 - Walmart.com
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Amazon.com: 3M Littmann Stethoscope, Cardiology IV, Black Tube, Stainless Steel Chestpiece, 22 inch, 6151 : Industrial & Scientific
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Amazon.com: 3M Littmann Cardiology IV Diagnostic Stethoscope, Black-Finish Chestpiece, Black Tube, Stem and Headset, 27 inch, 6163 + 40007 Stethoscope Identification Tag, Black : Industrial & Scientific
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