New England Journal of Medicine · 2007 · 837 citations · 26 references
Food fortification with folic acid was associated with a significant reduction in the rate of neural-tube defects in Canada. The decrease was greatest in areas in which the baseline rate was high.
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Prevention of Neural-Tube Defects with Folic Acid in China
R. J. Berry, Jon D. Erickson, Cynthia A. Moore et al. · New England Journal of Medicine · 1999 · 1.3K citations · Full text
Martha Savaria Morris, Paul F. Jacques, Irwin H. Rosenberg et al. · American Journal of Clinical Nutrition · 2007 · 599 citations
Risk of Neural Tube Defect—Affected Pregnancies Among Obese Women
Gary M. Shaw · JAMA · 1996 · 348 citations