| http://www.w3.org/ns/prov#value | - U. TEXAS-AUSTIN (US) ??? A missing enzyme could explain why folic acid supplements don???t always prevent neural tube defects in developing embryos.It has been known for several decades that folic acid supplementation dramatically reduces the incidence of neural tube defects, such as spina bifida and anencephaly, which are among the most common birth defects.
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