摘要
Summary What is already known about this topic?Passive smoking during pregnancy,which is prevalent in China,has been reported to be associated with an increased risk for neural tube defects(NTDs)in five counties of Shanxi Province in northern China.What is added by this report?After 4 years since the implementation of the World Health Organization(WHO)Framework Convention on Tobacco Control(FCTC)in China.
基金
National Natural Science Foundation of China(No.81973056)
Medical Research Council(Grant Ref:MR/T003847/1)from UK.
