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Amazon.com: Welch Allyn Harvey Elite Adult Cardiology Stethoscope, Black; 5079-125; Double-Head Chestpiece (Diaphragm and Bell), Dual Lumen Tubing; 28 in : Industrial & Scientific
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Amazon.com: Welch Allyn Adult Professional Stethoscope, Burgundy; 5079-139; Double-Head Chestpiece (Diaphragm and Low-Frequency Bell), Single Lumen Tubing, 28 in. : Industrial & Scientific
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Amazon.com: Welch Allyn - Estetoscopio profesional para adultos, borgoña; 5079-139; pecho de doble cabeza (diafragma y campana de baja frecuencia), tubo de un solo lum, 28 pulgadas : Industrial y Científico
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