Between 2000 and 2015, the prevalence of BDs in Guangxi has a decreasing trend: the BDs prevalence during 2000–2003 and 2004–2009 increased from 201.80 to 207.13 per 10,000 PIs, and then during 2010–2015, it decreased to 112.60 per 10,000 PIs by a large margin ( 27 ).
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Epidemiology of birth defects based on a birth defects surveillance system in southwestern China and the associated risk factors.
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