Original Article

Serological Differences in Folate/Vitamin B12 in Pregnancies Affected by Neural Tube Defects

Background: Laboratory evidence is presented of significant associations between reduced maternal serum folate and vitamin B12 levels and neural tube birth defects (NTD) compared to referents. Methods: This was an incident case-control study. Cases of neural tube defects (including anencephaly and open spina bifida) diagnosed in residents within 100 miles…