Research Article: The Association Between Exercise During Pregnancy and the Risk of Preterm Birth
Introduction:
The World Health Organization defined preterm birth (PTB) as less than weeks gestation. PTB has posed significant risks to the health of both the children and the mothers. Complications of PTB were the main cause of death in children younger than years of age globally in , accounting for approximately % of deaths among newborn babies. China had the second-highest rate of PTB in the world in , which suggested that we should pay attention to the health of premature children. At the same time, women with preterm…
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