- normal phonocardiogram
- 正常: normal; regular; average
- 心音: heart sounds; cardiac sounds ...
- 图: picture; chart; drawing; map
- 心音图: cardiophonogram; pcg (phonocardiogram); phonocardiogram(a r.pcg); phonocardiogram(abbr.pcg); phonocardiogram(pcg)
- 光谱心音图: spectral phonocardiogram
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