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When a stethoscope could deafen the doctor

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Pushing boundaries in clinical acoustics usually means someone gets hurt, and early electronic auscultation was absolutely no exception. The stethophone was a clunky, heavily amplifying behemoth of a stethoscope that was just as likely to capture the subtle whoosh of a heart murmur as it was to permanently deafen the physician if the patient happened to cough directly into the microphone.

When a stethoscope could deafen the doctor
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