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Folic acid supplementation is known to prevent the
sib recurrence of neural tube defects,
and a ten fold larger dose (4 mg daily) is indicated for women that
already mothered a baby with anencephaly or spina bifida. Folic acid
supplementation is also known to prevent the occurrence
of several types
of birth defects. Thus, perinatal health promotion projects should include
such supplementation.
Centers for Disease Control (1992) Recommendations for the use of folic
acid to reduce the number of cases of spina bifida and other neural
tube defects. Morbidity and Mortality Weekly Report 41(RR-14): 1-7.
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