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听诊器是怎么发明出来的?

How Was The Stethoscope Invented?

听诊器是怎么发明出来的?

In the early 1800s, a French physician named René Laennec had a dilemma. He needed to listen to the heart sounds of a young woman with signs of heart disease. But the only method of listening to heart sounds known to Western medicine at the time was simply to press an ear to the patient’s chest. Laennec just couldn’t bring himself to get that close and personal with this ample young woman.

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