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Amazon.com: 3M 6163 Littmann Cardiology IV Black Chestpiece Stethoscope with 27" Black Tube : Industrial & Scientific
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3M 2450 Littmann Lightweight II S.E. Stethoscope, 28" Black Tube: Littman Stethoscope: Amazon.com: Industrial & Scientific
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Amazon.com: 3M 6163 Littmann Cardiology IV Black Chestpiece Stethoscope with 27" Black Tube : Industrial & Scientific
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