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3M Littmann Electronic Stethoscope Model 3200, Features Ambient Noise Reduction Technology, Amplifies Sounds, Black Tube, 27 inch : Amazon.ca: Industrial & Scientific
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3M Littmann Electronic Stethoscope Model 3200, Features Ambient Noise Reduction Technology, Amplifies Sounds, Black Tube, 27 inch : Amazon.ca: Industrial & Scientific
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3M™ Littmann® CORE Digital Stethoscope, Black Chestpiece, Tube, Stem and Headset, 27 inch, 8480: Amazon.com: Industrial & Scientific
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