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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 Littmann Classic III Monitoring Stethoscope, Black Tube, 27 inch, 5620 : Industrial & Scientific
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Amazon.com: 3M Littmann Classic III Stethoscope, Grey Tube, 27 inch, 5621 and Primacare DL-9325 Reusable LED Penlight with Pupil Gauge bundle : Industrial & Scientific
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