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Amazon.com: 3M™ Littmann® Classic II Infant Stethoscope, Black Tube, 28 inch, 2114 : Industrial & Scientific
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3M Littmann Classic III Monitoring Stethoscope, Smoke-Finish, Black Tube, 27 inch, 5811 & 40007 Stethoscope Identification Tag, Black: Amazon.com: Industrial & Scientific
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