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Amazon.com: Welch Allyn 5079-321 Harvey DLX Stethoscopes, Triple Head, 28" Black : Industrial & Scientific
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Amazon.com: Welch Allyn for Students Harvey DLX Adult Cardiology Stethoscope, Black; 5079-325; Double-Head Chestpiece (Diaphragm and Bell), Dual Lumen Tubing; 28 in. : Industrial & Scientific
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