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Neural tube defect prevalence before and after mandatory folic acid fortification in 19 population-based birth defect surveillance programs, United States, 1995-2011

Prevalence of neural tube defects (anencephaly and spina bifida) before and after mandatory folic acid fortification, by maternal race/ethnicity--19 population-based birth defect surveillance programs, United States, 1995–2011. (Source: Williams J, Mai CT, Mulinare J, et al. Updated estimates of neural tube defects prevented by mandatory folic acid fortification - United States, 1995-2011. MMWR Morb Mortal Wkly Rep 2015;64[1]:1-5. Public domain.)

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