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Amazon.com: 3M 6163 Littmann Cardiology IV Black Chestpiece Stethoscope with 27" Black Tube : Industrial & Scientific
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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™ Diagnostic Stethoscope, 6152, Standard-Finish Chestpiece, Black Tube, 3 Each/Case | 3M Singapore
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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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