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How Ultrasound Works

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By: Craig Freudenrich, Ph.D. | Updated: Apr 21, 2023

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Please copy/paste the following text to properly cite this HowStuffWorks.com article:

Craig Freudenrich, Ph.D. "How Ultrasound Works" 1 January 1970.
HowStuffWorks.com. <https://science.howstuffworks.com/ultrasound.htm> 24 February 2025

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