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Amazon.com: 3M Littmann Classic III Monitoring Stethoscope, Navy Blue Tube, 27 Inch, 5622 & 40007 Stethoscope Identification Tag, Black : Industrial & Scientific
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Amazon.com: 3M 6154 Littmann Health Care Cardiology IV Stethoscope, Navy Blue : Industrial & Scientific
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3M Littmann Classic III Stethoscope, Black-Finish Chestpiece, Stem and Headset, Navy Blue Tube, 27 inch - Walmart.com
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