A normal heart rate for a fetus can range from 110 to 160 beats per minute (BPM). Very early in pregnancy, it is typically around 110 BPM. Fetal heart rate may speed up to 140 to 170 BPM around the ...
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Lung cancer is the most common malignant tumor in China. Its incidence and mortality rate increase year by year. In the synthesis treatment of lung cancer ...