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Background
Overweight and obesity are related to maternal and infant physical health, such as gestational diabetes, preeclampsia, and macrosomia. The purpose of this meta‐analysis was to assess the effect of physical exercise on maternal and infant outcomes in overweight and obese pregnant women.
Methods
Two researchers independently searched Cochrane Library, Embase, PubMed, Web of Science, and...
Background
The association between active maternal smoking and congenital malformations is well established, but little is known about the association between secondhand smoke and congenital malformations. Moreover, studies regarding the association between congenital malformations and secondhand smoke have not yielded consistent results.
Methods
In July 2018, we searched PubMed, EMBASE, and China...
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