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Discovering new facts and revealing existing myths about the acoustic stethoscope 200 years after its invention Lukasz Nowak(a), Karolina Nowak(b) (a) - ppt download
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3M Littmann Stethoscopes India on X: "A stethoscope with both a bell & diaphragm (or the capacity to act as a bell & diaphragm) is essential to perform a proper auscultation #stethoscope #
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