bn:01073939n
Noun Concept
Categories: Cardiology
EN
fourth cardiac sound  fourth heart sound  4th heart sound  fourth haert sound  S4
EN
The fourth heart sound or S4 is an extra heart sound that occurs during late diastole, immediately before the normal two "lub-dub" heart sounds. Wikipedia
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EN
The fourth heart sound or S4 is an extra heart sound that occurs during late diastole, immediately before the normal two "lub-dub" heart sounds. Wikipedia
Type of abnormal heart sound Wikidata
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