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To study the prevalence of different types of neural tube defects (NTDs) in Luliang Prefecture, Shanxi province, where the prevalence of NTDs is unusually high and the correlation between NTDs prevalence and patterns. A surveillance population-based birth defects was performed in Luliang Prefecture, Shanxi province. The results of our study showed that the prevalence of NTDs was 2-fold higher...
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