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3M Littmann Cardiology IV Diagnostic Stethoscope, Smoke-Finish Chest Piece, Black Tube, Smoke Stem and Headset, 27 Inch, 6162,Black Tube, Smoke Stem: Amazon.com: Industrial & Scientific
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Amazon.com: 3M 2176 Littmann Master Cardiology Smoke Chestpiece Stethoscope with 27" Black Tube : Industrial & Scientific
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Amazon.com: 3M Littmann Stethoscope, Master Cardiology, Black Tube, Stainless Steel Chestpiece, 27 inch, 2160 : Industrial & Scientific
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