Abertek Company's Cardiology Stethoscope are designed for better overall performance in every aspect, According to the inventor of the world's first stethoscope , French physician Rene- Theophile Hyacinth Laennec the Stethoscope's general purpose is to amplify the sound created by the vibrations of the human cardiovascular system for a physician to hear it clearly. the purpose still has not change , only the technology in maximizing the effectiveness and efficiency

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