Результаты (
английский) 3:
[копия]Скопировано!
heart rate rhythm conditions at rest with a frequency of 60 to 70 beats per minute.the frequency of below 60 - 90 - tachycardia, bradycardia, above.contraction of the muscles of the heart is characterized by a time reduction.atrial - 0.1 seconds.ventricular contraction of 0.3 seconds.pause - 0.4 seconds.
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