Crackles

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Notion

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Science and technology

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What Wikipedia says

Crackles are the clicking, rattling, or crackling noises that may be made by one or both lungs of a human or animal with a respiratory disease during inhalation, and occasionally during exhalation. They are usually heard only with a stethoscope ("on auscultation").

Excerpt from the Wikipedia article “Crackles”, under the CC BY-SA 4.0 license. Read the article on Wikipedia