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Amazon.com: Durabasics Classic 3, Cardiology 3 & Cardiology 4 Stethoscope Accessories Kit for Littman Stethoscope Replacement Parts & Littmann Stethoscope Parts - Fits Classic III, Cardiology III & IV - Black : Industrial & Scientific
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3M? Littmann® Cardiology IV? Stethoscope, Mirror-Finish Caribbean Blue Tube, 6169 Free Gift Included ($15 Value) - Walmart.com
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