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1 янв 1816 г. - Invention of the stethoscope

Описание:

René Laennec invented the stethoscope in 1816. It was monaural and composed of a wooden tube. This invention meant physicians could now perform auscultation without direct physical contact with the patient.

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History of Biotechnology

ByIsabella Santoni
18 янв 2018
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1 янв 1816 г.
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~ 208 г назад
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