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![What is heart rate? What is a normal pulse rate? - Medical News Today](https://www.iarticlesnet.com/pub/img/site/s_08.jpeg)
What is heart rate? What is a normal pulse rate? - Medical News Today
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日期:2024-08-25
The heartbeat, and so the heart rate, is regulated by the natural pacemaker of the heart. The heart rate ......看更多