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3M Littmann Lightweight II S.E. Stethoscope, Black Tube, 28 Inch, 2450 & 40007 Stethoscope Identification Tag, Black: Amazon.com: Industrial & Scientific
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Amazon.com: 3M Littmann Classic III Monitoring Stethoscope, Black Tube, 27 inch, 5620 : Industrial & Scientific
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3M™ Littmann® Stethoscope Spare Parts Kit, 40016 Classic III™, Cardiology IV™ and CORE, Black | 3M United States
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