![Society for HealthCare Innovation on X: "Before the stethoscope was invented, doctors would listen to their patient's heartbeats by putting their ears on to their chests, a quite crude and inefficient method. # Society for HealthCare Innovation on X: "Before the stethoscope was invented, doctors would listen to their patient's heartbeats by putting their ears on to their chests, a quite crude and inefficient method. #](https://pbs.twimg.com/media/E3CxiuvVkAk5Uum.jpg:large)
Society for HealthCare Innovation on X: "Before the stethoscope was invented, doctors would listen to their patient's heartbeats by putting their ears on to their chests, a quite crude and inefficient method. #
Biomedical Engineers - How Stethoscopes Work? Sound has been used as a diagnostic tool for millennia. You can learn a lot with an ear to a person's chest -- that the heart
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