Littmann Master Cardiology Stethoscope, Black Edition, 2161 - Stethoscope .com
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3M™ Littmann® Stethoscope Binaurals for Master Cardiology™ , Cardiology III™ , Cardiology II S.E. and Cardiology S.T.C. Stethoscopes, Black Tube, Black Eartips, 27 inch - SAVELIVES
Prestige Medical 3M™ Littmann® Cardiology IV™ Stethoscope | eBay